Python program to multiply two matrices

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This is a python program tp multiply two matrices (tested in version 3.4)




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# python program to multiply two matrices
# using nested loops
# 3x3 matrix

X = [[12,7,3],[4,5,6],[7,8,9]]

# 3x4 matrix

Y = [[5,8,1,2],[6,7,3,0],[4,5,9,1]]

# result in 3x4

result = [[0,0,0,0],[0,0,0,0],[0,0,0,0]]

# iterate through rows of X

for i in range(len(X)):
    #iterate through columns of Y
    for j in range(len(Y[0])):
        #iterate through rows of Y
        for k in range(len(Y)):
            result[i][j]+=X[i][k]*Y[k][j]
for r in result:
    print(r)

Output:

[114, 160, 60, 27]
[74, 97, 73, 14]
[119, 157, 112, 23]

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