Vectorization

[RonnyM]

Hi!

Need to vectorize this, but do not have a clue.

a = n*m matrix
x and y are n and m vectors

Suggestions?



def fill(a, x, y):
    for i in range(1,a.shape[0]):
        xp = x[i]
        for j in range(a.shape[1]):
            yp = y[j]
            a[i,j] = sin(xp*yp)*exp(-xp*yp) + a[i-1,j]
    return a

Thanks in advance,

Ronny Mandal