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<Input>
<Text-field style="Title" layout="Title">Harj 8 LV </Text-field>
<Text-field style="Author" layout="Author">23.3.2001</Text-field>
</Input>
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<Group labelreference="L3" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">restart:with(linalg): with(LinearAlgebra): with(plots):</Text-field>
</Input>
</Group>
<Group labelreference="L4" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">setoptions3d(axes=boxed,orientation=[-30,50],style=patchcontour):</Text-field>
</Input>
</Group>
<Group labelreference="L5" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal"><Font encoding="UTF-8">#read(&quot;c:\134\134opetus\134\134maple\134\134v201.mpl&quot;):
</Font>#read(&quot;/home/apiola/opetus/peruskurssi/v2-3/201/maple/v201.mpl&quot;);
read(&quot;/p/edu/mat-1.414/maple/v201.mpl&quot;):
</Text-field>
</Input>
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<Group labelreference="L6" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">alias(Tr=Transpose):</Text-field>
</Input>
</Group>
<Group labelreference="L7" drawlabel="true">
<Input>
<Text-field style="Text" bold="true" layout="List Item"><Font bold="true">Ohjeita:</Font></Text-field>
<Text-field style="List Item" layout="List Item">LinearAlgebra/linalg-matriisit:</Text-field>
<Text-field style="List Item" layout="List Item"><Font encoding="UTF-8">Siirtym\342\200\260kauden hankaluus on tietorakennekonversiotarve. </Font></Text-field>
<Text-field style="List Item" layout="List Item">Suosituksia:</Text-field>
<Text-field style="Bullet Item" layout="Bullet Item"><Font style="Maple Input" executable="false">H:=Matrix(hessian(f(x,y),[x,y]));  g:= Vector(grad(f(x,y),[x,y]);
</Font><Font encoding="UTF-8">Kannattaa n\342\200\260in muuttaa vanhat rakenteet uusiksi, t\342\200\260ll\313\206in </Font><Font style="Maple Input" executable="false">subs </Font>toimii normaalisti, samoin matriisikertolasku muodossa<Font style="Maple Input" executable="false"> A.B;</Font></Text-field>
<Text-field style="Bullet Item" layout="Bullet Item"><Font style="Maple Input" executable="false">Transpose </Font><Font encoding="UTF-8">ei toimi vektoreille. Ei kannata jumiutua t\342\200\260h\342\200\260n, vaan tehd\342\200\260 vaikka </Font><Font style="Maple Input" executable="false">h:=&lt;h1,h2&gt;; ht:=&lt;h1 | h2&gt;; 
</Font><Font encoding="UTF-8">Toinen, huomionarvoinen mahdollisuus: Tehd\342\200\260\342\200\260n vektorin sijasta matriisi, lis\342\200\260\342\200\260m\342\200\260ll\342\200\260 toiset kulmasulut:</Font><Font style="Maple Input" executable="false"> 
hm:=&lt;&lt;h[1],h[2]&gt;&gt;;</Font></Text-field>
</Input>
</Group>
<Section collapsed="false" MultipleChoiceAnswerIndex="-1" MultipleChoiceRandomizeChoices="false" TrueFalseAnswerIndex="-1" EssayAnswerRows="5" EssayAnswerColumns="60"><Title>
<Text-field style="Heading 1" layout="Heading 1">1.</Text-field></Title>
<Text-field style="Normal" layout="Normal"></Text-field>
<Section collapsed="false" MultipleChoiceAnswerIndex="-1" MultipleChoiceRandomizeChoices="false" TrueFalseAnswerIndex="-1" EssayAnswerRows="5" EssayAnswerColumns="60"><Title>
<Text-field style="Heading 2" layout="Heading 2">a)</Text-field></Title>
<Group labelreference="L8" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">f:=(x,y)-&gt;1/(2+x-2*y);p:=2,1:</Text-field>
</Input>
</Group>
<Group labelreference="L9" drawlabel="true">
<Input>
<Text-field style="Normal" layout="Normal">1. derivaatat:</Text-field>
</Input>
</Group>
<Group labelreference="L10" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">D1f:=D[1](f)(p);D2f:=D[2](f)(p);</Text-field>
</Input>
</Group>
<Group labelreference="L11" drawlabel="true">
<Input>
<Text-field style="Normal" layout="Normal">2. derivaatat:</Text-field>
</Input>
</Group>
<Group labelreference="L12" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">D11f:=D[1,1](f)(p);D12f:=D[1,2](f)(p);D22f:=D[2,2](f)(p);</Text-field>
</Input>
</Group>
<Group labelreference="L13" drawlabel="true">
<Input>
<Text-field style="Normal" layout="Normal">3. derivaatat:</Text-field>
</Input>
</Group>
<Group labelreference="L14" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">D111f:=D[1,1,1](f)(p);D112f:=D[1,1,2](f)(p);D122f:=D[1,2,2](f)(p);D222f:=D[2,2,2](f)(p);</Text-field>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal"></Text-field>
</Input>
</Group>
<Group labelreference="L15" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">T3:=f(p)+(D1f*h1+D2f*h2)+
(1/2)*(D11f*h1^2+2*D12f*h1*h2+D22f*h2^2)+
(1/3!)*(D111f*h1^3+4*D112f*h1^2*h2+4*D122f*h1*h2^2+D222f*h2^3);</Text-field>
</Input>
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<Group labelreference="L16" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">T3:=subs(h1=x-2,h2=y-1,T3);</Text-field>
</Input>
</Group>
<Group labelreference="L17" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">H:=0.6:display([plot3d(f(x,y),x=2-H..2+H,y=1-H..1+H),plot3d(T3,x=2-H..2+H,y=1-H..1+H,color=yellow)]);</Text-field>
</Input>
</Group>
<Group labelreference="L18" drawlabel="true">
<Input>
<Text-field style="Normal" layout="Normal">Geom. summa:</Text-field>
</Input>
</Group>
<Group labelreference="L19" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">T:=taylor((1/2)*1/(1+t),t=0,4);</Text-field>
</Input>
</Group>
<Group labelreference="L20" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">convert(%,polynom);</Text-field>
</Input>
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<Group labelreference="L21" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">subs(t=(x-2*y)/2,%);subs(x=2+h,y=1+k,%);expand(%);subs(h=x-2,k=x-1,%);</Text-field>
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<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal"></Text-field>
</Input>
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<Group labelreference="L23" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal"></Text-field>
</Input>
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</Section>
<Section collapsed="false" MultipleChoiceAnswerIndex="-1" MultipleChoiceRandomizeChoices="false" TrueFalseAnswerIndex="-1" EssayAnswerRows="5" EssayAnswerColumns="60"><Title>
<Text-field style="Heading 2" layout="Heading 2">b)</Text-field></Title>
<Group labelreference="L24" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal"></Text-field>
</Input>
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</Section>
</Section>
<Section collapsed="false" MultipleChoiceAnswerIndex="-1" MultipleChoiceRandomizeChoices="false" TrueFalseAnswerIndex="-1" EssayAnswerRows="5" EssayAnswerColumns="60"><Title>
<Text-field style="Heading 1" layout="Heading 1">2.)</Text-field></Title>
<Group labelreference="L25" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">op(f);</Text-field>
</Input>
</Group>
<Group labelreference="L26" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">g:=Vector(grad(f(x,y),[x,y])); gp:=subs(x=2,y=1,g);</Text-field>
</Input>
</Group>
<Group labelreference="L27" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">H:=Matrix(hessian(f(x,y),[x,y]));Hp:=subs(x=2,y=1,%);</Text-field>
</Input>
</Group>
<Group labelreference="L28" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">h:=&lt;h1,h2&gt;;hT:=&lt;h1 | h2&gt;;</Text-field>
</Input>
</Group>
<Group labelreference="L29" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">f(p)+gp.h+(1/2)*hT.Hp.h;expand(%);subs(h1=x-2,h2=y-1,%);</Text-field>
</Input>
</Group>
<Group labelreference="L30" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">T3;</Text-field>
</Input>
</Group>
</Section>
<Section collapsed="false" MultipleChoiceAnswerIndex="-1" MultipleChoiceRandomizeChoices="false" TrueFalseAnswerIndex="-1" EssayAnswerRows="5" EssayAnswerColumns="60"><Title>
<Text-field style="Heading 1" layout="Heading 1">3)</Text-field></Title>
<Section collapsed="false" MultipleChoiceAnswerIndex="-1" MultipleChoiceRandomizeChoices="false" TrueFalseAnswerIndex="-1" EssayAnswerRows="5" EssayAnswerColumns="60"><Title>
<Text-field style="Heading 2" layout="Heading 2">a)</Text-field></Title>
<Group labelreference="L31" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">f:=x^3+y^3-3*x*y;g:=grad(f,[x,y]);</Text-field>
</Input>
</Group>
<Group labelreference="L32" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">solve({g[1]=0,g[2]=0},{x,y});allvalues(%[3]);</Text-field>
</Input>
</Group>
<Group labelreference="L33" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">KRP:=&lt;0,0&gt;,&lt;1,1&gt;;</Text-field>
</Input>
</Group>
<Group labelreference="L34" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">H:=Matrix(hessian(f,[x,y]));H00:=subs(x=0,y=0,H);H11:=subs(x=1,y=1,H);</Text-field>
</Input>
</Group>
<Group labelreference="L35" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">det(H00);</Text-field>
</Input>
</Group>
<Group labelreference="L36" drawlabel="true">
<Input>
<Text-field style="Normal" layout="Normal">Siis ominaisarvot erimerkkiset, joten <Font bold="true" style="Text">(0,0) on satulapiste.</Font></Text-field>
</Input>
</Group>
<Group labelreference="L37" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">det(H11),trace(H11);</Text-field>
</Input>
</Group>
<Group labelreference="L38" drawlabel="true">
<Input>
<Text-field style="Normal" layout="Normal">Siis ominaisarvot positiiviset =&gt; <Font bold="true" style="Text">(1,1) on  min-piste.</Font></Text-field>
</Input>
</Group>
<Group labelreference="L39" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">H:=0.5:plot3d(f,x=-H..H,y=-H..H,style=patchcontour);plot3d(f,x=1-H..1+H,y=1-H..1+H,style=patchcontour);</Text-field>
</Input>
</Group>
</Section>
<Section collapsed="false" MultipleChoiceAnswerIndex="-1" MultipleChoiceRandomizeChoices="false" TrueFalseAnswerIndex="-1" EssayAnswerRows="5" EssayAnswerColumns="60"><Title>
<Text-field style="Heading 2" layout="Heading 2">b)</Text-field></Title>
<Group labelreference="L40" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">f:=(x,y)-&gt;cos(x)+cos(y);g:=Vector(grad(f(x,y),[x,y]));H:=Matrix(hessian(f(x,y),[x,y]));</Text-field>
</Input>
</Group>
<Group labelreference="L41" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">KRP:=[x=0,y=0],[x=0,y=Pi],[x=Pi,y=0],[x=Pi,y=Pi];</Text-field>
</Input>
</Group>
<Group labelreference="L42" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">H1:=subs(KRP[1],H);H2:=subs(KRP[2],H);H3:=subs(KRP[3],H);H4:=subs(KRP[4],H);</Text-field>
</Input>
</Group>
<Group labelreference="L43" drawlabel="true">
<Input>
<Text-field style="Normal" layout="Normal"><Font encoding="UTF-8">T\342\200\260ss\342\200\260 on kaikki kombinaatiot, yleisesti, KRP:t: x=m*Pi, y=n*Pi. </Font></Text-field>
<Text-field style="Normal" layout="Normal">- Jos m ja parittomia, niin lam1 &gt;0, lam2 &gt;0 =&gt; min</Text-field>
<Text-field style="Normal" layout="Normal">- Jos          parillisia, niin           &lt; 0  ja &lt; 0     =&gt; max</Text-field>
<Text-field style="Normal" layout="Normal">- Jos toinen pariton ja toinen parill =&gt; satulapiste</Text-field>
<Text-field style="Normal" layout="Normal"></Text-field>
</Input>
</Group>
<Group labelreference="L44" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">plot3d(f(x,y),x=-2*Pi..2*Pi,y=-2*Pi..2*Pi);</Text-field>
</Input>
</Group>
<Group labelreference="L45" drawlabel="true">
<Input>
<Text-field style="Normal" layout="Normal"><Font encoding="UTF-8">f saa kaikissa minimeiss\342\200\260 arvon -2 ja maksimeissa arvon 2. Muita \342\200\260\342\200\260riarvoja ei ole (reunaa tai singulaaripisteit\342\200\260 ei ole). Siten  -2  ja 2 ovat globaaleja min- ja max-arvoja.</Font></Text-field>
<Text-field style="Normal" layout="Normal"><Font encoding="UTF-8">(Koska kyseess\342\200\260 on jaksollinen funktio, voitaisiin soveltaa kompaktia joukkoa koskevaa peruslausettakin, jos tarvetta olisi. Funkiohan saa kaikki mahdolliset arvonsa neli\313\206ss\342\200\260 [-Pi,Pi] x [-Pi,Pi].)</Font></Text-field>
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<Group labelreference="L46" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal"></Text-field>
</Input>
</Group>
</Section>
</Section>
<Section collapsed="false" MultipleChoiceAnswerIndex="-1" MultipleChoiceRandomizeChoices="false" TrueFalseAnswerIndex="-1" EssayAnswerRows="5" EssayAnswerColumns="60"><Title>
<Text-field style="Heading 1" layout="Heading 1">4.</Text-field></Title>
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<Text-field prompt="&gt; " style="Maple Input" layout="Normal"><Equation executable="true" style="2D Input" input-equation="with(linalg):" display="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">QyYtSSV3aXRoRzYiNiNJJ2xpbmFsZ0c2JCUqcHJvdGVjdGVkR0koX3N5c2xpYkdGJSEiIi1GJDYjSSZwbG90c0dGKEYr</Equation></Text-field>
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<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">f:=(x,y)-&gt;1/x+1/y+sin(x^2*y^2);</Text-field>
</Input>
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<Group labelreference="L124" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal"><Equation executable="true" style="2D Input" input-equation="plot3d(f(x, y), x = 1 .. 2, y = 1 .. 2, axes = box);" display="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">QyQtSSdwbG90M2RHNiI2Ji1JImZHRiU2JEkieEdGJUkieUdGJS9GKjsiIiIiIiMvRitGLS9JJWF4ZXNHRiVJJGJveEdGJUYu</Equation></Text-field>
</Input>
</Group>
<Group labelreference="L48" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">g:=Vector(grad(f(x,y),[x,y]));
</Text-field>
</Input>
</Group>
<Group labelreference="L49" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">H:=Matrix(hessian(f(x,y),[x,y]));</Text-field>
</Input>
</Group>
<Group labelreference="L50" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">KRPyht:=g[1]=0,g[2]=0;</Text-field>
</Input>
</Group>
<Group labelreference="L51" drawlabel="true">
<Input>
<Text-field style="Normal" layout="Normal"><Font encoding="UTF-8">Yht\342\200\260l\313\206t ovat mutkikkaat, mutta symmetrisen n\342\200\260k\313\206iset. Ei kannatta haaveillakaan, ett\342\200\260 </Font><Font bold="true" style="Text">solve</Font><Font encoding="UTF-8"> p\342\200\260rj\342\200\260isi n\342\200\260ille.  Ensimm\342\200\260inen &quot;insight&quot; voidaan saada piirt\342\200\260m\342\200\260ll\342\200\260 kummankin 0-korkeusk\342\200\260yr\342\200\260 ja etsim\342\200\260ll\342\200\260 niiden leikkauspisteit\342\200\260.</Font></Text-field>
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<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal"></Text-field>
</Input>
</Group>
<Group labelreference="L53" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">display(implicitplot(g[1]=0,x=0.5..2,y=0.5..2,grid=[30,30]),contourplot(g[2],x=0.5..2,y=0.5..2,color=blue,contours=30));</Text-field>
</Input>
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<Group labelreference="L184" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal"><Equation executable="true" style="2D Input" input-equation="display(implicitplot(g[1] = 0, x = .5 .. 2, y = .5 .. 2, grid = [200, 200], color = red), implicitplot(g[2] = 0, x = .5 .. 2, y = .5 .. 2, color = blue, grid = [60, 60]));" display="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">QyQtSShkaXNwbGF5RzYiNiQtSS1pbXBsaWNpdHBsb3RHRiU2Jy8mSSJnR0YlNiMiIiIiIiEvSSJ4R0YlOyQiIiYhIiIiIiMvSSJ5R0YlRjIvSSVncmlkR0YlNyQiJCsjRjwvSSZjb2xvckdGJUkkcmVkR0YlLUYoNicvJkYsNiNGNkYvRjBGNy9GPkklYmx1ZUdGJS9GOjckIiNnRklGLg==</Equation></Text-field>
</Input>
</Group>
<Group labelreference="L205" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal"><Equation executable="true" style="2D Input" input-equation="display(contourplot(g[1], x = .5 .. 2, y = .5 .. 2, grid = [200, 200], color = red, contours = [seq(-.1 .. .1, 0.5e-1)]), implicitplot(g[2] = 0, x = .5 .. 2, y = .5 .. 2, color = blue, grid = [60, 60]));" display="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">QyQtSShkaXNwbGF5RzYiNiQtSSxjb250b3VycGxvdEdGJTYoJkkiZ0dGJTYjIiIiL0kieEdGJTskIiImISIiIiIjL0kieUdGJUYwL0klZ3JpZEdGJTckIiQrI0Y6L0kmY29sb3JHRiVJJHJlZEdGJS9JKWNvbnRvdXJzR0YlNyMtSSRzZXFHJSpwcm90ZWN0ZWRHNiQ7JEYzRjMkRi1GMyRGMiEiIy1JLWltcGxpY2l0cGxvdEdGJTYnLyZGKzYjRjQiIiFGLkY1L0Y8SSVibHVlR0YlL0Y4NyQiI2dGVUYt</Equation></Text-field>
</Input>
</Group>
<Group labelreference="L107" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal"><Equation executable="true" style="2D Input" input-equation="" display="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">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</Equation></Text-field>
</Input>
</Group>
<Group labelreference="L133" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal"><Equation executable="true" style="2D Input" input-equation="" display="LUklbXJvd0c2Iy9JK21vZHVsZW5hbWVHNiJJLFR5cGVzZXR0aW5nR0koX3N5c2xpYkdGJzYmLUkjbWlHRiQ2I1EhRicvJStmb3JlZ3JvdW5kR1EoWzAsMCwwXUYnLyUrZXhlY3V0YWJsZUdRJmZhbHNlRicvJSxtYXRodmFyaWFudEdRJ25vcm1hbEYn">LUklbXJvd0c2Iy9JK21vZHVsZW5hbWVHNiJJLFR5cGVzZXR0aW5nR0koX3N5c2xpYkdGJzYjLUkjbWlHRiQ2I1EhRic=</Equation></Text-field>
</Input>
</Group>
<Group labelreference="L54" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">KRPa:=fsolve({KRPyht},{x=1,y=1});</Text-field>
</Input>
</Group>
<Group labelreference="L55" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">KRPb:=fsolve({KRPyht},{x=0.9,y=0.9});</Text-field>
</Input>
</Group>
<Group labelreference="L56" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">KRPb:=fsolve({KRPyht},{x=1.5,y=1.5});</Text-field>
</Input>
</Group>
<Group labelreference="L57" drawlabel="true">
<Input>
<Text-field style="Normal" layout="Normal"><Font encoding="UTF-8">N\342\200\260ytt\342\200\260\342\200\260p\342\200\260 noita l\313\206ytyv\342\200\260n.</Font></Text-field>
</Input>
</Group>
<Group labelreference="L58" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">display(implicitplot(g[1]=0,x=1.2..2,y=1.2..2),implicitplot(g[2]=0,x=1.2..2,y=1.2..2,color=blue));</Text-field>
</Input>
</Group>
<Group labelreference="L59" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">implicitplot(g[2]=0,x=1.2..2,y=1.2..2,color=blue);</Text-field>
</Input>
</Group>
<Group labelreference="L60" drawlabel="true">
<Input>
<Text-field style="Normal" layout="Normal"><Font encoding="UTF-8">Nyt on pakko ottaa kyn\342\200\260 ja paperi avuksi.</Font></Text-field>
<Text-field style="Normal" layout="Normal"><Font encoding="UTF-8">K\342\200\260sin sievennys k\342\200\260y helposti ja johtaa:</Font></Text-field>
</Input>
</Group>
<Group labelreference="L61" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">yhtsys:=x^3*y^2*cos(x^2*y^2)=1,x^2*y^3*cos(x^2*y^2)=1;</Text-field>
</Input>
</Group>
<Group labelreference="L62" drawlabel="true">
<Input>
<Text-field style="Normal" layout="Normal">Puolittain jakamalla:</Text-field>
</Input>
</Group>
<Group labelreference="L63" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">x=y,2*x^5*cos(x^4)=1;</Text-field>
</Input>
</Group>
<Group labelreference="L64" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">plot(2*x^5*cos(x^4)-1,x=0.9..2.1);plot(2*x^5*cos(x^4)-1,x=0.8..1.1);</Text-field>
</Input>
</Group>
<Group labelreference="L65" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">x1:=fsolve(2*x^5*cos(x^4)=1,x=1);x2:=fsolve(2*x^5*cos(x^4)=1,x=1.4);x3:=fsolve(2*x^5*cos(x^4)=1,x=1.7);x4:=fsolve(2*x^5*cos(x^4)=1,x=1.8);x5:=fsolve(2*x^5*cos(x^4)=1,x=1.9);</Text-field>
</Input>
</Group>
<Group labelreference="L66" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">KRP:=[x1,x1],[x2,x2],[x3,x3],[x4,x4],[x5,x5];</Text-field>
</Input>
</Group>
<Group labelreference="L166" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal"><Equation executable="true" style="2D Input" input-equation="" display="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">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</Equation></Text-field>
</Input>
</Group>
<Group labelreference="L67" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">plot3d(f(x,y),x=0.5..1.5,y=0.5..1.5);</Text-field>
</Input>
</Group>
<Group labelreference="L68" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">H:=Matrix(hessian(f(x,y),[x,y]));</Text-field>
</Input>
</Group>
<Group labelreference="L69" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">H1:=subs(x=x1,y=x1,H);H2:=subs(x=x2,y=x2,H);H3:=subs(x=x3,y=x3,H);H4:=subs(x=x4,y=x4,H);H5:=subs(x=x5,y=x5,H);</Text-field>
</Input>
</Group>
<Group labelreference="L70" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">det(H1),[det(H2),trace(H2)],[det(H3),trace(H3)],[det(H4),trace(H4)],det(H5);</Text-field>
</Input>
</Group>
<Group labelreference="L71" drawlabel="true">
<Input>
<Text-field style="Normal" layout="Normal">P1: satulapiste, P2: min, P3: satula, P4: min, P5: satula</Text-field>
</Input>
</Group>
<Group labelreference="L72" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">plot3d(f(x,y),x=1..2,y=1..2,axes=box);</Text-field>
</Input>
</Group>
<Group labelreference="L73" drawlabel="true">
<Input>
<Text-field style="Normal" layout="Normal"></Text-field>
</Input>
</Group>
<Group labelreference="L74" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">x0:=x1:H:=0.1:plot3d(f(x,y),x=x0-H..x0+H,y=x0-H..x0+H,style=patchcontour);</Text-field>
</Input>
</Group>
<Group labelreference="L167" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal"><Equation executable="true" style="2D Input" input-equation="" display="LUklbXJvd0c2Iy9JK21vZHVsZW5hbWVHNiJJLFR5cGVzZXR0aW5nR0koX3N5c2xpYkdGJzYmLUkjbWlHRiQ2I1EhRicvJStmb3JlZ3JvdW5kR1EoWzAsMCwwXUYnLyUrZXhlY3V0YWJsZUdRJmZhbHNlRicvJSxtYXRodmFyaWFudEdRJ25vcm1hbEYn">LUklbXJvd0c2Iy9JK21vZHVsZW5hbWVHNiJJLFR5cGVzZXR0aW5nR0koX3N5c2xpYkdGJzYjLUkjbWlHRiQ2I1EhRic=</Equation></Text-field>
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<Text-field prompt="&gt; " style="Maple Input" layout="Normal">[x1,x1],&quot;on satula&quot;;</Text-field>
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<Group labelreference="L76" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">x0:=x2:H:=0.0005:plot3d(f(x,y),x=x0-H..x0+H,y=x0-H..x0+H,style=patchcontour,axes=box);</Text-field>
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<Text-field prompt="&gt; " style="Maple Input" layout="Normal"><Equation executable="true" style="2D Input" input-equation="" display="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">LUklbXJvd0c2Iy9JK21vZHVsZW5hbWVHNiJJLFR5cGVzZXR0aW5nR0koX3N5c2xpYkdGJzYkLUkjbWlHRiQ2JVEiZkYnLyUnaXRhbGljR1EldHJ1ZUYnLyUsbWF0aHZhcmlhbnRHUSdpdGFsaWNGJy1JKG1mZW5jZWRHRiQ2JC1GIzYlLUkjbW5HRiQ2JFEjMi5GJy9GM1Enbm9ybWFsRictSSNtb0dGJDYtUSIsRidGPi8lJmZlbmNlR1EmZmFsc2VGJy8lKnNlcGFyYXRvckdGMS8lKXN0cmV0Y2h5R0ZGLyUqc3ltbWV0cmljR0ZGLyUobGFyZ2VvcEdGRi8lLm1vdmFibGVsaW1pdHNHRkYvJSdhY2NlbnRHRkYvJSdsc3BhY2VHUSYwLjBlbUYnLyUncnNwYWNlR1EsMC4zMzMzMzMzZW1GJ0Y6Rj4=</Equation></Text-field>
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<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal"><Font encoding="UTF-8">[x2,x2],&quot; on minimi, vaikka kuvasta ei zoomaamallakaan aivan varmasti n\342\200\260e.&quot;;</Font></Text-field>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal"></Text-field>
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<Group labelreference="L78" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal"><Font encoding="UTF-8">x0:=x3:H:=0.004:plot3d(f(x,y),x=x0-H..x0+H,y=x0-H..x0+H);[x3,x3],&quot; on satula, mutta loppuun saa zoomata, eik\342\200\260 aivan varmasti silti n\342\200\260e&quot;;</Font></Text-field>
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<Group labelreference="L79" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal"><Font encoding="UTF-8">x0:=x4:H:=0.001:plot3d(f(x,y),x=x0-H..x0+H,y=x0-H..x0+H);[x4,x4],&quot; Hesse kertoo, ett\342\200\260 min, katsopa siit\342\200\260 nyt!&quot;;</Font></Text-field>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal"></Text-field>
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<Group labelreference="L80" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal"><Font encoding="UTF-8">x0:=x5:H:=0.001:plot3d(f(x,y),x=x0-H..x0+H,y=x0-H..x0+H);[x4,x4],&quot; Hesse kertoo, ett\342\200\260 satula.&quot;;</Font></Text-field>
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<Input>
<Text-field style="Normal" layout="Normal"></Text-field>
</Input>
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<Group labelreference="L82" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">f(x1,x1),f(x2,x2),f(x3,x3),f(x4,x4),f(x5,x5);</Text-field>
</Input>
</Group>
<Group labelreference="L83" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">plot([f(x,1),f(x,2),f(1,x),f(2,x)],x=1..2,color=[black,red,blue,green]);</Text-field>
</Input>
</Group>
<Group labelreference="L84" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">f(2,1.66);evalf(f(1,1));</Text-field>
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</Group>
<Group labelreference="L85" drawlabel="true">
<Input>
<Text-field style="Normal" layout="Normal"></Text-field>
<Text-field style="Normal" layout="Normal"><Font encoding="UTF-8">Globaali johtop\342\200\260\342\200\260t\313\206s on siis: suurin </Font></Text-field>
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<Group labelreference="L86" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">[x1,x1],f(x1,x1);</Text-field>
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<Group labelreference="L87" drawlabel="true">
<Input>
<Text-field style="Normal" layout="Normal"><Font encoding="UTF-8">ja pienin KRP:ss\342\200\260 P4, arvo = 0.0980005359, joka on pienint\342\200\260 reuna-arvoa pienemnpi:</Font></Text-field>
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<Group labelreference="L88" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">'f(2,1.66)'=f(2,1.66);'f(x4,x4)'=f(x4,x4);</Text-field>
</Input>
</Group>
<Group labelreference="L169" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal"><Equation executable="true" style="2D Input" input-equation="" display="LUklbXJvd0c2Iy9JK21vZHVsZW5hbWVHNiJJLFR5cGVzZXR0aW5nR0koX3N5c2xpYkdGJzYmLUkjbWlHRiQ2JVEjeDRGJy8lJ2l0YWxpY0dRJXRydWVGJy8lLG1hdGh2YXJpYW50R1EnaXRhbGljRicvJStmb3JlZ3JvdW5kR1EoWzAsMCwwXUYnLyUrZXhlY3V0YWJsZUdRJmZhbHNlRicvRjNRJ25vcm1hbEYn">LUklbXJvd0c2Iy9JK21vZHVsZW5hbWVHNiJJLFR5cGVzZXR0aW5nR0koX3N5c2xpYkdGJzYjLUkjbWlHRiQ2JVEjeDRGJy8lJ2l0YWxpY0dRJXRydWVGJy8lLG1hdGh2YXJpYW50R1EnaXRhbGljRic=</Equation></Text-field>
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<Input>
<Text-field style="Normal" layout="Normal"><Font encoding="UTF-8">b)-kohta: Tarkoittaa minimi\342\200\260 1. koordinaattinelj\342\200\260nneksess\342\200\260. Korjattu versio: Osoita, ett\342\200\260 pienint\342\200\260 ei ole.</Font></Text-field>
<Text-field style="Normal" layout="Normal"><Font encoding="UTF-8">T\342\200\260m\342\200\260 johtuu vaikkapa nyt siit\342\200\260, ett\342\200\260  suoralla y=x </Font><Font bold="true" style="Text">sini</Font><Font encoding="UTF-8"> saa miten kaukana tahansa arvon -1 ja t\342\200\260t\342\200\260 suoraa pitkin funktion arvojen inf = -1, koska 1/x =1/y l\342\200\260henee</Font></Text-field>
<Text-field style="Normal" layout="Normal"><Font encoding="UTF-8">0:aa. Kuitenkaan arvoa -1 ei miss\342\200\260\342\200\260n saavuteta, koska </Font><Font bold="true" style="Text">siniin </Font><Font encoding="UTF-8">aina lis\342\200\260t\342\200\260\342\200\260n jotain positiivista (1/x+1/y).</Font></Text-field>
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<Input>
<Text-field style="Normal" layout="Normal"><Font encoding="UTF-8">Aika ovela teht\342\200\260v\342\200\260, enp\342\200\260 ihmettele, vaikka Suvi ja Meri eiv\342\200\260t ihan joka yksityiskohtaa olisi jaksaneetkaan, vaan jaksoivat kaiken, mit\342\200\260 teht\342\200\260v\342\200\260ss\342\200\260 kysyttiin. (Nuo lokaalien luonteet olivat ylim\342\200\260\342\200\260r\342\200\260ist\342\200\260, mutta mielenkiintoista.)
Itsell\342\200\260kin riitti riemua t\342\200\260st\342\200\260 ihan pitk\342\200\260\342\200\260n! </Font></Text-field>
<Text-field style="Normal" layout="Normal"><Font encoding="UTF-8">Tuokin on tosi ovelaa, ett\342\200\260 funktiolla voi olla minimilaaksojen v\342\200\260liss\342\200\260 &quot;harjanteita&quot;, jotka l\342\200\260helt\342\200\260 katsottaessa (laskettaessa) osoittautuvat &quot;satulahuippuisiksi .</Font></Text-field>
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</Section>
<Section collapsed="true" MultipleChoiceAnswerIndex="-1" MultipleChoiceRandomizeChoices="false" TrueFalseAnswerIndex="-1" EssayAnswerRows="5" EssayAnswerColumns="60"><Title>
<Text-field style="Heading 1" layout="Heading 1"><Font encoding="UTF-8">Luentoteht\342\200\260viin liittyv\342\200\260\342\200\260 (to 22.3.)</Font></Text-field></Title>
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<Group labelreference="L91" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">F:=1/x+1/y+x*y;plot3d(F,x=1/3..3,y=1/3..3/x,style=patchcontour);</Text-field>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal"></Text-field>
</Input>
</Group>
<Group labelreference="L92" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">A:=Matrix([[17,6],[6,8]]);</Text-field>
</Input>
</Group>
<Group labelreference="L93" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">eigenvectors(A);</Text-field>
</Input>
</Group>
<Group labelreference="L94" drawlabel="true">
<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal">display(plot(16/x^2,x=2..4),contourplot(x^2+y^2,x=0..4,y=0..16,contours=[6,7,8,9,10,11,12,13,15],color=blue),scaling=constrained);</Text-field>
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<Input>
<Text-field prompt="&gt; " style="Maple Input" layout="Normal"></Text-field>
</Input>
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</Worksheet>