How do I make a heat map using the seaborn library in python when I have separate arrays of data? For example, lets say I have two arrays:

xdat = np.linspace(0,10,10)

ydat = np.linspace(0,10,10)

And I want these to be my x and y data axes. And I want the color of the heat map correlated to some function:

def f(A,B):

return A*B

zvals = f(xdat,ydat)

So I want the x and y axis to be xdat and y dat, and the color corresponding to the value of f at those xdat and y dat. Suggestions?