- #1
karadda
- 10
- 0
Hello, just got done taking a test and one problem kinda confused me.
f(x,y) = e^x cos y
find local min/max and saddle points
fx = e^x cos y
fy = -e^x sin y
I answered that there were no critical points for this function and therefore no extrema. I looked at a graph of this here. To me, those sharp crevices indicate the function is not differentiable at those points. Is this correct?
Homework Statement
f(x,y) = e^x cos y
find local min/max and saddle points
Homework Equations
fx = e^x cos y
fy = -e^x sin y
The Attempt at a Solution
I answered that there were no critical points for this function and therefore no extrema. I looked at a graph of this here. To me, those sharp crevices indicate the function is not differentiable at those points. Is this correct?