- #1
metzky
- 2
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Homework Statement
Using the curve [itex]\vec{a}[/itex](u,v)= (u,v,uv) for all (u,v) ε R^2
Find the matrix for d[itex]\vec{N}[/itex] in the basis of {[itex]\vec{a}[/itex][itex]_{u}[/itex],[itex]\vec{a}[/itex][itex]_{v}[/itex]}
Homework Equations
Well first off i found the partial derivatives
[itex]\vec{a}[/itex][itex]_{u}[/itex] which is 1,0,v, while [itex]\vec{a}[/itex][itex]_{v}[/itex] is 0,1,u
Then using those i found the normal vector which i calculated as [itex]1/\sqrt{v^{2}+u^{2}+1}[/itex] (-v,-u,1)
The Attempt at a Solution
Now this is where i get lost. Our book does not explain this very well at all. It just shows going fron N to dN with no explanation. I tried using the jacobian matrix to calculate the derivative but I'm not sure if this is the right approach. Most of the examples don't have a matrix from so i Know I'm doing something wrong.The problem is a set from