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--- math121b:02-05 [2020/02/04 21:24]
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+++ math121b:02-05 [2020/02/06 00:36] (current)
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  $\Gamma_f = \{(x,y,z) \in \R^3 \mid z = f(x,y) \}.$
 Here is a picture, [[https://www.wolframalpha.com/input/?i=plot+sin%28x%29sin%28y%29 | plotted using Wolfram alpha]]
-{{ :math121b:sinxsiny.gif?nolink |}}
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 ** Parametrization of  $\Gamma_f$  **, we will parametrize points on  $\Gamma_f$  using its  $(x,y)$  coordinates, to be clear, we call them  $(u,v)$ . That is

Lecture Notes