I am asked to estimate the value of $\displaystyle f_{xy}''(3;4)$ in
I have already found:
$\displaystyle f_x'(3;4) = -5$
$\displaystyle f_y'(3;4) = 2$
How do I find $\displaystyle f_{xy}''(3;4)$ from there?
Thanks a lot!
I am asked to estimate the value of $\displaystyle f_{xy}''(3;4)$ in
I have already found:
$\displaystyle f_x'(3;4) = -5$
$\displaystyle f_y'(3;4) = 2$
How do I find $\displaystyle f_{xy}''(3;4)$ from there?
Thanks a lot!
Estimate $\displaystyle f_y(2;4)$, $\displaystyle f_y(3,4)$ and $\displaystyle f_y(4;4)$ and use these to extimate $\displaystyle f_{yx}(3,4)$ or better yet look up even better methods in Abramowitz and Stegun
CB