If the derivative of an analytic function f is 0, does that mean that the partial derivative of f with respect to x=0 and the partial derivative of f with respect to y=0? And conversely, suppose I know the partial derivates of a function are both equal to 0, can I then assume that the derivative of the function is 0?
If the derivative of an analytic function f is 0, does that mean that the partial derivative of f with respect to x=0 and the partial derivative of f with respect to y=0? And conversely, suppose I know the partial derivates of a function are both equal to 0, can I then assume that the derivative of the function is 0?
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter9: Multivariable Calculus
Section9.3: Maxima And Minima
Problem 29E
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If the derivative of an analytic function f is 0, does that mean that the partial derivative of f with respect to x=0 and the partial derivative of f with respect to y=0?
And conversely, suppose I know the partial derivates of a function are both equal to 0, can I then assume that the derivative of the function is 0?
Hope this makes sense.
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