<?xml version="1.0" encoding="UTF-8"?>
<Worksheet>
<Version major="11" minor="1"/>
<Label-Scheme value="2" prefix=""/>
<View-Properties presentation="false"></View-Properties>
<MapleNet-Properties elisiondigitsbefore="100" labelling="true" indentamount="4" elisiontermsthreshold="10000" ansi="false" errorbreak="1" useclientjvm="true" echo="1" imaginaryunit="I" labelwidth="20" plotdriver="openviz" elisiondigitsafter="100" plotoutput="terminal" rtablesize="10" elisiontermsbefore="100" elisiondigitsthreshold="10000" typesetting="standard" plotdevice="inline" verboseproc="1" showassumed="1" errorcursor="false" longdelim="true" plotoptions="" quiet="false" elisiontermsafter="100" screenwidth="79" preplot="" prettyprint="3" displayprecision="-1" warnlevel="3" screenheight="25" latexwidth="6.0" postplot="" prompt="&gt; " ShowLabels="false"/>
<Styles><Font name="_cstyle292" background="[0,0,0]" bold="false" executable="false" family="Times New Roman" foreground="[0,0,0]" italic="true" opaque="false" readonly="false" size="12" subscript="false" superscript="false" underline="false" placeholder="false"/>
<Font name="_cstyle293" background="[0,0,0]" bold="false" executable="false" family="Times New Roman" foreground="[0,0,0]" italic="true" opaque="false" readonly="false" size="12" subscript="false" superscript="false" underline="false" placeholder="false"/>
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<Font name="Maple Input" background="[0,0,0]" bold="true" executable="true" family="Monospaced" foreground="[255,0,0]" italic="false" opaque="false" readonly="false" size="12" subscript="false" superscript="false" underline="false" placeholder="false"/>
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<Font name="2D Output" background="[255,255,255]" bold="false" executable="false" family="Times New Roman" foreground="[0,0,255]" italic="false" opaque="false" readonly="true" size="12" subscript="false" superscript="false" underline="false" placeholder="false"/>
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<Font name="Author" background="[0,0,0]" bold="false" executable="false" family="Times New Roman" foreground="[0,0,0]" italic="false" opaque="false" readonly="false" size="12" subscript="false" superscript="false" underline="false" placeholder="false"/>
<Font name="Warning" background="[0,0,0]" bold="false" executable="false" family="Monospaced" foreground="[0,0,255]" italic="false" opaque="false" readonly="true" size="10" subscript="false" superscript="false" underline="false" placeholder="false"/>
<Font name="Maple Input Placeholder" background="[255,255,255]" bold="true" executable="true" family="Monospaced" foreground="[200,0,200]" italic="false" opaque="false" readonly="false" size="12" subscript="false" superscript="false" underline="false" placeholder="true"/>
<Font name="Diagnostic" background="[255,255,255]" bold="false" executable="false" family="Monospaced" foreground="[40,120,40]" italic="false" opaque="false" readonly="true" size="12" subscript="false" superscript="false" underline="false" placeholder="false"/>
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<Font name="Normal" background="[0,0,0]" bold="false" executable="false" family="Times New Roman" foreground="[0,0,0]" italic="false" opaque="false" readonly="false" size="12" subscript="false" superscript="false" underline="false" placeholder="false"/>
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<Font name="Maple Output" background="[255,255,255]" bold="false" executable="false" family="Times New Roman" foreground="[0,0,0]" italic="false" opaque="false" readonly="false" size="12" subscript="false" superscript="false" underline="false" placeholder="false"/>
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<Font name="2D Input" background="[255,255,255]" bold="false" executable="true" family="Times New Roman" foreground="[0,0,0]" italic="false" opaque="false" readonly="false" size="12" subscript="false" superscript="false" underline="false" placeholder="false"/>
<Font name="Title" background="[0,0,0]" bold="true" executable="false" family="Times New Roman" foreground="[0,0,0]" italic="false" opaque="false" readonly="false" size="18" subscript="false" superscript="false" underline="true" placeholder="false"/>
<Font name="Equation Label" background="[255,255,255]" bold="true" executable="false" family="Times New Roman" foreground="[0,0,0]" italic="false" opaque="false" readonly="false" size="12" subscript="false" superscript="false" underline="false" placeholder="false"/>
<Font name="Dictionary Hyperlink" background="[255,255,255]" bold="false" executable="false" family="Serif" foreground="[147,0,15]" italic="false" opaque="false" readonly="false" size="12" subscript="false" superscript="false" underline="true" placeholder="false"/>
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<Font name="List Item" background="[255,255,255]" bold="false" executable="false" family="Times New Roman" foreground="[0,0,0]" italic="false" opaque="false" readonly="false" size="12" subscript="false" superscript="false" underline="false" placeholder="false"/>
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<Font name="Ordered List 1" background="[255,255,255]" bold="false" executable="false" family="Times New Roman" foreground="[0,0,0]" italic="false" opaque="false" readonly="false" size="12" subscript="false" superscript="false" underline="false" placeholder="false"/>
<Font name="Annotation Text" background="[255,255,255]" bold="false" executable="false" family="Times New Roman" foreground="[0,0,0]" italic="false" opaque="false" readonly="false" size="12" subscript="false" superscript="false" underline="false" placeholder="false"/>
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<Font name="Annotation Title" background="[255,255,255]" bold="true" executable="false" family="Times New Roman" foreground="[0,0,0]" italic="false" opaque="false" readonly="false" size="18" subscript="false" superscript="false" underline="false" placeholder="false"/>
<Font name="Text Output" background="[255,255,255]" bold="false" executable="false" family="Monospaced" foreground="[0,0,255]" italic="false" opaque="false" readonly="true" size="12" subscript="false" superscript="false" underline="false" placeholder="false"/>
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<Font name="Page Number" background="[0,0,0]" bold="false" executable="false" family="Times New Roman" foreground="[0,0,0]" italic="false" opaque="false" readonly="false" size="12" subscript="false" superscript="false" underline="false" placeholder="false"/>
<Font name="Bullet Item" background="[255,255,255]" bold="false" executable="false" family="Times New Roman" foreground="[0,0,0]" italic="false" opaque="false" readonly="false" size="12" subscript="false" superscript="false" underline="false" placeholder="false"/>
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<Font name="Maple Plot" background="[255,255,255]" bold="false" executable="false" family="Times New Roman" foreground="[0,0,0]" italic="false" opaque="false" readonly="false" size="12" subscript="false" superscript="false" underline="false" placeholder="false"/>
<Font name="Line Printed Output" background="[255,255,255]" bold="false" executable="false" family="Monospaced" foreground="[0,0,255]" italic="false" opaque="false" readonly="true" size="12" subscript="false" superscript="false" underline="false" placeholder="false"/>
<Font name="2D Inert Output" background="[255,255,255]" bold="false" executable="true" family="Times New Roman" foreground="[144,144,144]" italic="false" opaque="false" readonly="false" size="12" subscript="false" superscript="false" underline="false" placeholder="false"/>
<Font name="2D Comment" background="[0,0,0]" bold="false" executable="false" family="Times New Roman" foreground="[0,0,0]" italic="false" opaque="false" readonly="false" size="12" subscript="false" superscript="false" underline="false" placeholder="false"/>
<Font name="Hyperlink" background="[255,255,255]" bold="false" executable="false" family="Serif" foreground="[0,128,128]" italic="false" opaque="false" readonly="false" size="12" subscript="false" superscript="false" underline="true" placeholder="false"/>
<Font name="2D Math" background="[255,255,255]" bold="false" executable="false" family="Times New Roman" foreground="[0,0,0]" italic="false" opaque="false" readonly="false" size="12" subscript="false" superscript="false" underline="false" placeholder="false"/>
<Font name="Error" background="[255,255,255]" bold="false" executable="false" family="Monospaced" foreground="[255,0,255]" italic="false" opaque="false" readonly="true" size="12" subscript="false" superscript="false" underline="false" placeholder="false"/>
<Font name="Heading 1" background="[255,255,255]" bold="true" executable="false" family="Serif" foreground="[0,0,0]" italic="false" opaque="false" readonly="false" size="18" subscript="false" superscript="false" underline="false" placeholder="false"/>
<Font name="Text" background="[255,255,255]" bold="false" executable="false" family="Times New Roman" foreground="[0,0,0]" italic="false" opaque="false" readonly="false" size="12" subscript="false" superscript="false" underline="false" placeholder="false"/>
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<Task>
</Task>
<Text-field style="Title" layout="Title">Funktioner</Text-field>
<Text-field style="Author" layout="Author">Preben Alsholm, 10/1 2005</Text-field>
<Text-field style="Normal" layout="Normal"></Text-field>
<Group labelreference="L2">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">restart;</Text-field>
</Input>
</Group>
<Group labelreference="L3">
<Input>
<Text-field style="Normal" layout="Normal"></Text-field>
</Input>
</Group>
<Section collapsed="true" MultipleChoiceAnswerIndex="-1" MultipleChoiceRandomizeChoices="false" TrueFalseAnswerIndex="-1" EssayAnswerRows="5" EssayAnswerColumns="60"><Title>
<Text-field style="Heading 2" layout="Heading 2">Definition af funktion i Maple</Text-field></Title>
<Group labelreference="L4">
<Input>
<Text-field style="Warning" layout="Warning"></Text-field>
<Text-field style="Normal" layout="Normal">En funktion <Font style="_cstyle264">f</Font> er en afbildning, der til ethvert element <Font style="_cstyle265">x</Font><Font encoding="UTF-8"> i definitionsm\303\246ngden lader svare et element (billedet af </Font><Font style="_cstyle266">x</Font> ved <Font style="_cstyle267">f</Font><Font encoding="UTF-8">) i en anden m\303\246ngde. Dette billede af </Font><Font style="_cstyle268">x</Font> ved <Font style="_cstyle269">f</Font>  betegnes <Font style="_cstyle270">f(x)</Font>.</Text-field>
<Text-field style="Normal" layout="Normal"></Text-field>
<Text-field style="Normal" layout="Normal"><Font encoding="UTF-8">N\303\245r elementet </Font><Font style="_cstyle271">x</Font> ikke er konkretiseret, men kun er et bogstav, da er <Font style="_cstyle272">f(x)</Font> <Font style="_cstyle256">et udtryk i </Font>x. <Font style="_cstyle257">Funktionen </Font>er f, <Font style="_cstyle258">udtrykket i x </Font>er f(x).</Text-field>
<Text-field style="Normal" layout="Normal"></Text-field>
<Text-field style="Normal" layout="Normal">Maple opfatter en funktion <Font style="_cstyle273">f</Font> som en <Font style="_cstyle259">procedure</Font>, dvs. en opskrift, der beskriver, hvad <Font style="_cstyle274">f</Font><Font encoding="UTF-8"> skal g\303\270re ved et argument </Font><Font style="_cstyle275">x</Font>, ifald <Font style="_cstyle276">f </Font><Font encoding="UTF-8">anvendes p\303\245 det. Der kan skrives procedurer, der laver mange forskellige ting. Den type procedure, der mest intuitivt svarer til funktionsbegrebet, vil vi kalde en </Font><Font style="_cstyle260">pileprocedure</Font>. </Text-field>
<Text-field style="Normal" layout="Normal"></Text-field>
<Text-field style="Normal" layout="Normal"><Font encoding="UTF-8">En funktion kan defineres p\303\245 3 m\303\245der i Maple:</Font></Text-field>
<Text-field style="Normal" layout="Normal"></Text-field>
<Text-field style="Normal" layout="Normal"><Font style="_cstyle282">(1)</Font> Ved syntaksen      <Font style="_cstyle284">f :=  x -&gt; KONKRET formel i x;</Font></Text-field>
<Text-field style="Normal" layout="Normal"><Font encoding="UTF-8">Pilen laves af et minus og et `st\303\270rre end`-tegn. Intet evalueres ved definitionen. F\303\270rst n\303\245r funktionen kaldes, evalueres der. (Automatiske simplificeringer udf\303\270res dog).</Font></Text-field>
<Text-field style="Normal" layout="Normal"></Text-field>
<Text-field style="Normal" layout="Normal"><Font style="_cstyle277">(2)</Font> Ved syntaksen      <Font style="_cstyle285">f := unapply( </Font><Font style="_cstyle286">udtryk</Font><Font style="_cstyle287">, </Font><Font style="_cstyle288">x</Font><Font style="_cstyle289">);</Font></Text-field>
<Text-field style="Normal" layout="Normal"><Font encoding="UTF-8">n\303\245r et udtryk i </Font><Font style="_cstyle278">x</Font><Font encoding="UTF-8"> (h\303\251r kaldet </Font><Font style="_cstyle299">udtryk</Font>) er givet (evt. defineret i forvejen ved kommandoen <Font style="_cstyle280">udtryk</Font>:=konkret formel i <Font style="_cstyle279">x</Font>;). </Text-field>
<Text-field style="Normal" layout="Normal"><Font style="_cstyle302">udtryk</Font> evalueres fuldt ved definitionen.   </Text-field>
<Text-field style="Normal" layout="Normal"></Text-field>
<Text-field style="Normal" layout="Normal"><Font encoding="UTF-8">Resultatet er i begge ovenn\303\246vnte tilf\303\246lde en pileprocedure.</Font></Text-field>
<Text-field style="Normal" layout="Normal"></Text-field>
<Text-field style="Normal" layout="Normal"><Font style="_cstyle281">(3)</Font> Ved direkte brug af generel procedure-definition:    f := <Font style="_cstyle261">proc</Font>(x) <Font style="_cstyle263">opskrift</Font> <Font style="_cstyle262">end</Font> <Font style="_cstyle300">proc</Font><Font encoding="UTF-8">;  Intet evalueres ved definitionen. F\303\270rst n\303\245r proceduren kaldes, evalueres der.</Font></Text-field>
<Text-field style="Normal" layout="Normal"></Text-field>
</Input>
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<Section collapsed="true" MultipleChoiceAnswerIndex="-1" MultipleChoiceRandomizeChoices="false" TrueFalseAnswerIndex="-1" EssayAnswerRows="5" EssayAnswerColumns="60"><Title>
<Text-field style="Heading 3" layout="Heading 3">Eksempel</Text-field></Title>
<Group labelreference="L5">
<Input>
<Text-field style="Normal" layout="Normal"></Text-field>
<Text-field style="Normal" layout="Normal"><Font style="_cstyle315">Metode 1</Font>:  <Equation executable="false" style="2D Comment" input-equation="">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</Equation>. Funktionen er givet direkte ved sin forskrift og vi er klar til at taste den ind. </Text-field>
<Text-field style="Normal" layout="Normal"><Font encoding="UTF-8">Her b\303\270r man bruge piledefinitionen:</Font></Text-field>
<Text-field style="Normal" layout="Normal"></Text-field>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">f:= x -&gt; x^2*sin(x); </Text-field>
</Input>
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<Group labelreference="L6">
<Input>
<Text-field style="Normal" layout="Normal"><Font encoding="UTF-8">Et eksempel p\303\245 et kald til funktionen f:</Font></Text-field>
</Input>
</Group>
<Group labelreference="L7">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">f(Pi/3);</Text-field>
</Input>
</Group>
<Group labelreference="L8">
<Input>
<Text-field style="Normal" layout="Normal"><Font style="_cstyle316">Metode 2</Font><Font encoding="UTF-8">: Vi har et udtryk indeholdende en variabel (x). Ud fra dette udtryk \303\270nsker vi dannet en funktion, som vi vil kalde g:</Font></Text-field>
<Text-field style="Normal" layout="Normal">Her bruges <Font style="_cstyle317">unapply</Font>.</Text-field>
<Text-field style="Normal" layout="Normal"><Font encoding="UTF-8">Som eksempel lader vi det givne udtryk v\303\246re</Font></Text-field>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">udtryk:=int((8-x)/(x-3),x); </Text-field>
</Input>
</Group>
<Group labelreference="L9">
<Input>
<Text-field style="Normal" layout="Normal"><Font encoding="UTF-8">Vi danner en funktion, der ved input af x som output giver v\303\246rdien af </Font><Font style="_cstyle314">udtryk</Font>:</Text-field>
</Input>
</Group>
<Group labelreference="L10">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">g:=unapply( udtryk, x);</Text-field>
</Input>
</Group>
<Group labelreference="L11">
<Input>
<Text-field style="Normal" layout="Normal"><Font encoding="UTF-8">Et eksempel p\303\245 et kald til funktionen g</Font></Text-field>
</Input>
</Group>
<Group labelreference="L12">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">g(7);</Text-field>
</Input>
</Group>
<Group labelreference="L13">
<Input>
<Text-field style="_cstyle319" layout="Normal"><Font encoding="UTF-8">Bem\303\246rk, at piledefinitionen slet ikke virker efter hensigten her:</Font></Text-field>
</Input>
</Group>
<Group labelreference="L14">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">gpil:=x-&gt;udtryk;</Text-field>
</Input>
</Group>
<Group labelreference="L15">
<Input>
<Text-field style="Normal" layout="Normal"><Font encoding="UTF-8">Bem\303\246rk, at udtryk ikke blev evalueret ved definitionen: Der st\303\245r stadig </Font><Font style="_cstyle320">udtryk</Font><Font encoding="UTF-8"> efter pilen i den bl\303\245 udskrift.</Font></Text-field>
<Text-field style="Normal" layout="Normal"><Font encoding="UTF-8">Vi pr\303\270ver et kald til funktionen:</Font></Text-field>
</Input>
</Group>
<Group labelreference="L16">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">gpil(7);</Text-field>
</Input>
</Group>
<Group labelreference="L17">
<Input>
<Text-field style="Normal" layout="Normal"><Font encoding="UTF-8">Dette output f\303\245s faktisk uanset hvilket input, man giver funktionen. Grunden er, at det x, der optr\303\246der i </Font><Font style="_cstyle321">udtryk</Font><Font encoding="UTF-8"> f\303\270rst ses, n\303\245r funktionen bliver kaldt (dvs. brugt som en funktion), men s\303\245 er det for sent. Her skal alts\303\245 bruges unapply!</Font></Text-field>
</Input>
</Group>
<Group labelreference="L18">
<Input>
<Text-field style="Normal" layout="Normal"><Font style="_cstyle318">Metode</Font><Font encoding="UTF-8"> 3: Output for vores funktion kan f\303\270rst findes efter en eller flere mellemregninger, eller det er m\303\245ske mere bekvemt s\303\245dan. Vi kunne ogs\303\245 have brug for lokale variable til at opbevare mellemresultater.</Font></Text-field>
<Text-field style="Normal" layout="Normal">Her bruges generel proceduredefinition.</Text-field>
<Text-field style="Normal" layout="Normal">Vi tager et simpelt eksempel, der i virkeligheden blot definerer den sammensatte funktion <Equation executable="false" style="2D Comment" input-equation="">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</Equation>:</Text-field>
<Text-field style="Normal" layout="Normal"></Text-field>
</Input>
</Group>
<Group labelreference="L19">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">h:= proc(x) local r,s; r:=x^2; s:=sin(r); exp(s)  end proc; </Text-field>
</Input>
</Group>
<Group labelreference="L20">
<Input>
<Text-field style="Normal" layout="Normal"><Font encoding="UTF-8">Et eksempel p\303\245 et kald til funktionen h:</Font></Text-field>
</Input>
</Group>
<Group labelreference="L21">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">h(u);</Text-field>
</Input>
</Group>
<Group labelreference="L22">
<Input>
<Text-field style="Normal" layout="Normal">eller et mere konkret:</Text-field>
</Input>
</Group>
<Group labelreference="L23">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">h(sqrt(Pi));</Text-field>
</Input>
</Group>
<Group labelreference="L24">
<Input>
<Text-field style="Normal" layout="Normal"></Text-field>
<Text-field style="Normal" layout="Normal"><Font encoding="UTF-8">N\303\245r det kan lade sig g\303\270re, brug da den direkte pilemetode (1). </Font></Text-field>
<Text-field style="Normal" layout="Normal"></Text-field>
<Text-field style="Normal" layout="Normal"><Font encoding="UTF-8">Vi tegner grafen af funktionen f p\303\245 intervallet </Font><Equation executable="false" style="2D Comment" input-equation="">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</Equation>:</Text-field>
<Text-field style="Normal" layout="Normal"></Text-field>
</Input>
</Group>
<Group labelreference="L25">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">plot( f(x), x=-Pi..Pi);</Text-field>
</Input>
</Group>
<Group labelreference="L26">
<Input>
<Text-field style="Normal" layout="Normal"><Font encoding="UTF-8">Vi finder differentialkvotienten i et vilk\303\245rligt x. Her kan vi bruge </Font><Font style="_cstyle309">diff</Font>, der er beregnet til differentiation af <Font style="_cstyle308">udtryk</Font>, der indeholder en variabel:</Text-field>
<Text-field style="Normal" layout="Normal"></Text-field>
</Input>
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<Group labelreference="L27">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">diff(f(x),x);</Text-field>
</Input>
</Group>
<Group labelreference="L28">
<Input>
<Text-field style="Normal" layout="Normal"></Text-field>
<Text-field style="Normal" layout="Normal">Vil vi derimod finde den afledede funktion, bruger vi <Font style="_cstyle310">D</Font><Font encoding="UTF-8">, der virker p\303\245 </Font><Font style="_cstyle311">funktioner</Font>:</Text-field>
<Text-field style="Normal" layout="Normal"></Text-field>
</Input>
</Group>
<Group labelreference="L29">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">D(f);</Text-field>
</Input>
</Group>
<Group labelreference="L30">
<Input>
<Text-field style="Normal" layout="Normal">Den afledede har for <Equation executable="false" style="2D Comment" input-equation="">LUklbXJvd0c2Iy9JK21vZHVsZW5hbWVHNiJJLFR5cGVzZXR0aW5nR0koX3N5c2xpYkdGJzYlLUkjbWlHRiQ2I1EhRictRiM2JS1GLDYlUSJ4RicvJSdpdGFsaWNHUSV0cnVlRicvJSxtYXRodmFyaWFudEdRJ2l0YWxpY0YnLUkjbW9HRiQ2LVEiPUYnL0Y4USdub3JtYWxGJy8lJmZlbmNlR1EmZmFsc2VGJy8lKnNlcGFyYXRvckdGQi8lKXN0cmV0Y2h5R0ZCLyUqc3ltbWV0cmljR0ZCLyUobGFyZ2VvcEdGQi8lLm1vdmFibGVsaW1pdHNHRkIvJSdhY2NlbnRHRkIvJSdsc3BhY2VHUSwwLjI3Nzc3NzhlbUYnLyUncnNwYWNlR0ZRLUkmbWZyYWNHRiQ2KC1GIzYjLUYsNiVRJSZwaTtGJy9GNUZCRj4tRiM2Iy1JI21uR0YkNiRRIjJGJ0Y+LyUubGluZXRoaWNrbmVzc0dRIjFGJy8lK2Rlbm9tYWxpZ25HUSdjZW50ZXJGJy8lKW51bWFsaWduR0Ziby8lKWJldmVsbGVkR0ZCRis=</Equation><Font encoding="UTF-8"> v\303\246rdien</Font></Text-field>
<Text-field style="Normal" layout="Normal"></Text-field>
</Input>
</Group>
<Group labelreference="L31">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">D(f)(Pi/2);</Text-field>
</Input>
</Group>
<Group labelreference="L32">
<Input>
<Text-field style="Normal" layout="Normal">Vi kan finde en stamfunktion ved brug af <Font style="_cstyle312">int</Font>:</Text-field>
<Text-field style="_cstyle313" layout="Normal"> </Text-field>
</Input>
</Group>
<Group labelreference="L33">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">int(f(x),x);</Text-field>
</Input>
</Group>
<Group labelreference="L34">
<Input>
<Text-field style="Normal" layout="Normal">Det bestemte integral <Equation executable="false" style="2D Comment" input-equation="">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</Equation><Font encoding="UTF-8"> findes s\303\245ledes</Font></Text-field>
<Text-field style="Normal" layout="Normal"></Text-field>
</Input>
</Group>
<Group labelreference="L35">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">int(f(x),x=0..Pi);</Text-field>
</Input>
</Group>
<Group labelreference="L36">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal"></Text-field>
</Input>
</Group>
</Section>
</Section>
<Section collapsed="true" MultipleChoiceAnswerIndex="-1" MultipleChoiceRandomizeChoices="false" TrueFalseAnswerIndex="-1" EssayAnswerRows="5" EssayAnswerColumns="60"><Title>
<Text-field style="Heading 2" layout="Heading 2"><Font encoding="UTF-8">Sammens\303\246tning af funktioner</Font></Text-field></Title>
<Group labelreference="L37">
<Input>
<Text-field style="Normal" layout="Normal"><Font encoding="UTF-8">Lad f v\303\246re funktionen fra eksemplet ovenfor. Vi kontrollerer lige, at f(x) er det, som det burde v\303\246re:</Font></Text-field>
</Input>
</Group>
<Group labelreference="L38">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">f(x);</Text-field>
</Input>
</Group>
<Group labelreference="L39">
<Input>
<Text-field style="Normal" layout="Normal"></Text-field>
<Text-field style="Normal" layout="Normal"><Font encoding="UTF-8">Lad g v\303\246re funktionen</Font></Text-field>
<Text-field style="Normal" layout="Normal"></Text-field>
</Input>
</Group>
<Group labelreference="L40">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">g:= x -&gt; sqrt(x); </Text-field>
</Input>
</Group>
<Group labelreference="L41">
<Input>
<Text-field style="Normal" layout="Normal"></Text-field>
<Text-field style="Normal" layout="Normal"><Font encoding="UTF-8">Sammens\303\246tning af funktioner sker ved brug af tegnet @ (snabel a):</Font></Text-field>
<Text-field style="Normal" layout="Normal"></Text-field>
</Input>
</Group>
<Group labelreference="L42">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">f@g; </Text-field>
</Input>
</Group>
<Group labelreference="L43">
<Input>
<Text-field style="Normal" layout="Normal"></Text-field>
<Text-field style="Normal" layout="Normal">Evalueringen af  <Font style="_cstyle283">f@g</Font><Font encoding="UTF-8"> sker f\303\270rst, n\303\245r denne sammensatte funktion bliver kaldt, d.v.s. bliver anvendt p\303\245 et argument x:</Font></Text-field>
<Text-field style="Normal" layout="Normal"></Text-field>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">(f@g)(x); </Text-field>
</Input>
</Group>
<Group labelreference="L44">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">(f@g)(4*Pi);</Text-field>
</Input>
</Group>
<Group labelreference="L45">
<Input>
<Text-field style="Normal" layout="Normal"><Font encoding="UTF-8">En funktion kan sammens\303\246ttes med sig selv, enten s\303\245ledes:</Font></Text-field>
<Text-field style="Normal" layout="Normal"></Text-field>
</Input>
</Group>
<Group labelreference="L46">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">(g@g)(x); </Text-field>
</Input>
</Group>
<Group labelreference="L47">
<Input>
<Text-field style="Normal" layout="Normal"><Font encoding="UTF-8">eller s\303\245ledes:</Font></Text-field>
<Text-field style="Normal" layout="Normal"></Text-field>
</Input>
</Group>
<Group labelreference="L48">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">(g@@2)(x);</Text-field>
</Input>
</Group>
<Group labelreference="L49">
<Input>
<Text-field style="Normal" layout="Normal">g sammensat med sig selv 8 gange:</Text-field>
<Text-field style="Normal" layout="Normal"></Text-field>
</Input>
</Group>
<Group labelreference="L50">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">(g@@8)(x);</Text-field>
</Input>
</Group>
<Group labelreference="L51">
<Input>
<Text-field style="Normal" layout="Normal"></Text-field>
<Text-field style="Normal" layout="Normal">Den inverse funktion til en funktion <Font style="_cstyle303">F</Font><Font encoding="UTF-8"> findes som f\303\270lger, men Maple bestemmer den kun i meget specielle tilf\303\246lde:</Font></Text-field>
<Text-field style="Normal" layout="Normal"></Text-field>
</Input>
</Group>
<Group labelreference="L52">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">(F@@(-1))(x);</Text-field>
</Input>
</Group>
<Group labelreference="L53">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">(ln@@(-1))(x);</Text-field>
</Input>
</Group>
<Group labelreference="L54">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">ln@@(-1);</Text-field>
</Input>
</Group>
<Group labelreference="L55">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">(exp@@(-1))(x);</Text-field>
</Input>
</Group>
<Group labelreference="L56">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">exp@@(-1);</Text-field>
</Input>
</Group>
<Group labelreference="L57">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">sin@@(-1);</Text-field>
</Input>
</Group>
<Group labelreference="L58">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">tan@@(-1);</Text-field>
</Input>
</Group>
<Group labelreference="L59">
<Input>
<Text-field style="Normal" layout="Normal"></Text-field>
<Text-field style="Normal" layout="Normal"><Font encoding="UTF-8">Sammens\303\246tning af en funktion og dennes inverse giver den identiske funktion, dvs. funktionen </Font><Equation executable="false" style="2D Comment" input-equation="">LUklbXJvd0c2Iy9JK21vZHVsZW5hbWVHNiJJLFR5cGVzZXR0aW5nR0koX3N5c2xpYkdGJzYlLUkjbWlHRiQ2I1EhRictRiM2JS1GLDYlUSJ4RicvJSdpdGFsaWNHUSV0cnVlRicvJSxtYXRodmFyaWFudEdRJ2l0YWxpY0YnLUkjbW9HRiQ2LVEnJnJhcnI7RicvRjhRJ25vcm1hbEYnLyUmZmVuY2VHUSZmYWxzZUYnLyUqc2VwYXJhdG9yR0ZCLyUpc3RyZXRjaHlHRkIvJSpzeW1tZXRyaWNHRkIvJShsYXJnZW9wR0ZCLyUubW92YWJsZWxpbWl0c0dGQi8lJ2FjY2VudEdGQi8lJ2xzcGFjZUdRJjAuMGVtRicvJSdyc3BhY2VHRlFGMUYr</Equation>:</Text-field>
<Text-field style="Normal" layout="Normal"></Text-field>
</Input>
</Group>
<Group labelreference="L60">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">G:=F@@(-1);</Text-field>
</Input>
</Group>
<Group labelreference="L61">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">(G@F)(x);</Text-field>
</Input>
</Group>
<Group labelreference="L62">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">(F@G)(x);</Text-field>
</Input>
</Group>
<Group labelreference="L63">
<Input>
<Text-field style="Normal" layout="Normal"></Text-field>
</Input>
</Group>
</Section>
<Section collapsed="true" MultipleChoiceAnswerIndex="-1" MultipleChoiceRandomizeChoices="false" TrueFalseAnswerIndex="-1" EssayAnswerRows="5" EssayAnswerColumns="60"><Title>
<Text-field style="Heading 2" layout="Heading 2">Funktioner kendt af Maple</Text-field></Title>
<Group labelreference="L64">
<Input>
<Text-field style="Normal" layout="Normal"></Text-field>
<Text-field style="Normal" layout="Normal">Den naturlige logaritme betegnes i Maple med <Font style="_cstyle295">ln</Font><Font encoding="UTF-8">, men man kan ogs\303\245 bruge </Font><Font style="_cstyle296">log</Font>. Logaritmen med grundtallet <Font style="_cstyle304">b </Font>hedder <Font style="_cstyle305">log[b]</Font>. Titalslogaritmen hedder derfor <Font style="_cstyle297">log[10]</Font><Font style="_cstyle306">, men </Font><Font encoding="UTF-8">man kan ogs\303\245 i dette tilf\303\246lde blot skrive </Font><Font style="_cstyle298">log10</Font><Font style="_cstyle301">:</Font><Font style="_cstyle307"> </Font></Text-field>
<Text-field style="Normal" layout="Normal"></Text-field>
</Input>
</Group>
<Group labelreference="L65">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">log( exp(123)), log(a);</Text-field>
</Input>
</Group>
<Group labelreference="L66">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">log[10](1000);</Text-field>
</Input>
</Group>
<Group labelreference="L67">
<Input>
<Text-field style="Normal" layout="Normal"><Font encoding="UTF-8">Samme resultat opn\303\245s med</Font></Text-field>
</Input>
</Group>
<Group labelreference="L68">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">log10(1000); </Text-field>
</Input>
</Group>
<Group labelreference="L69">
<Input>
<Text-field style="Normal" layout="Normal"></Text-field>
<Text-field style="Normal" layout="Normal"><Font encoding="UTF-8">For en liste over de af Maple kendte funktioner udf\303\270r f\303\270lgende kommando:</Font></Text-field>
<Text-field style="Normal" layout="Normal"></Text-field>
</Input>
</Group>
<Group labelreference="L70">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">?inifcns</Text-field>
</Input>
</Group>
<Group labelreference="L71">
<Input>
<Text-field style="Normal" layout="Normal"></Text-field>
<Text-field style="Normal" layout="Normal">Listen er <Font style="_cstyle294">meget</Font><Font encoding="UTF-8"> lang. Vi n\303\246vner kun her, at </Font><Font style="_cstyle290">arctan</Font> kan bruges med to argumenter, <Font style="_cstyle291">arctan(y,x)</Font>. Denne angiver hovedargumentet for det komplekse tal <Font style="_cstyle292">x</Font>+<Font style="_cstyle293">iy</Font>:</Text-field>
<Text-field style="Normal" layout="Normal"></Text-field>
</Input>
</Group>
<Group labelreference="L72">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">arctan(1,1), arctan(1,0), arctan(2,-2), arctan(0,-3), arctan(-3,-3), arctan(-4,4);</Text-field>
</Input>
</Group>
<Group labelreference="L76" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal"></Text-field>
</Input>
</Group>
</Section>
<Text-field superscript="false" placeholder="false" executable="false" selection-placeholder="false" italic="false" size="12" bold="false" subscript="false" family="Times New Roman" opaque="false" underline="false" background="[255,255,255]" readonly="false" foreground="[0,0,0]" alignment="left" firstindent="0" spacebelow="0" leftmargin="0" linespacing="0.0" initial="0" linebreak="space" rightmargin="0" bulletsuffix="" spaceabove="0" bullet="none" pagebreak-before="false"></Text-field>
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