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TakuyaMurata (talk | contribs) m →Global version: grammar |
TakuyaMurata (talk | contribs) →Example: use a consistent notation |
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Line 42:
\end{bmatrix}.
</math>
The Jacobian matrix of it at <math>(x, y)</math> is:
:<math>
\begin{bmatrix}
{e^x \cos y} & {-e^x \sin y}\\
Line 50:
\end{bmatrix}
</math>
with
:<math>
\det
e^{2x} \cos^2 y + e^{2x} \sin^2 y=
e^{2x}.
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