Partialderivata m.a.p. x
\[
\frac{-2x-2x(-4+y^2)}{(1+x^2+y^2)^2} - \frac{4x(5-x^2-y^2+(1-x^2)(-4+y^2))}{(1+x^2+y^2)^3}
\]
Partialderivata m.a.p. y
\[
\frac{-2y+2(1-x^2)y}{(1+x^2+y^2)^2}-\frac{4y(5-x^2-y^2+(1-x^2)(-4+y^2))}{(1+x^2+y^2)^3}
\]
Funktionen
\[
\frac{5-x^2-y^2+(1-x^2)(-4+y^2)}{(1+x^2+y^2)^2}
\]
Datorlaboration, uppgift 3 |
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