poisson need help with this

he Poisson Equation on the square domain 0<x<1, 0<y<1, with u=g(x,y) on the boundary, where

Finish this code, with node spacing hx=hy=h=0.005, where hx is the space in the x direction and hy is the space in the y direction, as indicated in the template.

What is u(50h, 25h) rounded to the nearest 0.001?

Is there a easier way to do this?