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Python Program to Multiply Two Matrices

# 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 is 3x4
result = [[0,0,0,0],
[0,0,0,0],
[0,0,0,0]]

print(len(X))
print(len(Y[0]))
print(len(Y))

# 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)