For Himmelbalu's Function, f(x,y) = (x² + y - 11)² + (x + y² - 7)², using Python Jupyter Notebooks...

1.) Find the maxima. What is the value of f(x,y) at that point?

2.) Find all minima.

These two cells are given and may help:

from sympy import init_session init_session()

and

f = (x**2 + y - 11)**2 + (x + y**2 - 7)**2 dfdx = diff(f, x) dfdy = diff(f, y)