Question

In: Computer Science

PYTHON CODE: def square_matrix_multiplication(matrix1,matrix2): C=[[0 for i in range(len(matrix1))] for i in range(len(matrix2))] for i in...

PYTHON CODE:

def square_matrix_multiplication(matrix1,matrix2):

C=[[0 for i in range(len(matrix1))] for i in range(len(matrix2))]
for i in range(len(matrix1)):
for j in range(len(matrix2[0])):
C[i][j]=0
for k in range(len(matrix2)):
C[i][j] += matrix1[i][k]*matrix2[k][j]
return C

I use that function in my code. When I type like "return C", It does not work. If I type print(C), then my code works. Why is it happening?

I created two user-entered matrices above the function, then I called the function.

Expert Solution

def square_matrix_multiplication(matrix1,matrix2):

C=[[0 for i in range(len(matrix1))] for i in range(len(matrix2))]

for i in range(len(matrix1)):

for j in range(len(matrix2[0])):

C[i][j]=0

for k in range(len(matrix2)):

C[i][j] += matrix1[i][k]*matrix2[k][j]

return C

X = [[12,7,3],

[4 ,5,6],

[7 ,8,9]]

Y = [[5,8,1],

[6,7,3],

[4,5,9]]

Z = square_matrix_multiplication(X,Y)

print(Z)

Your code is working fine. I have attached the image for your help.

venereology answered 5 hours ago

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