Basic Matrix Manipulations in Python Without Using Any Packages

python matrix 5 years, 11 months ago
#Matrix Manipulations Without using any packages #Define Matrix A,B,C A=[[1,2,3], [2,3,4], [4,5,6]] B=[[1,2,3], [3,4,5], [9,7,5]] result=[[0,0,0], [0,0,0], [0,0,0]] #Addition for i in range(len(A)): for j in range(len(B)): result[i][j]=A[i][j]+B[i][j] #Subtraction for i in range(len(A)): for j in range(len(B)): result[i][j]=A[i][j]-B[i][j] #Multiplication for i in range(len(A)): for j in range(len(B[0])): for k in range(len(B)): result[i][j]+=A[i][k]*B[k][j] #Division by 2 for i in range(len(A)): for j in range(len(A)): result[i][j]=A[i][j]/2 #Transpose for i in range(len(A[0])): for j in range(len(A)): result[i][j]=A[j][i] result=0 #Add all the elements for i in range(len(A)): for j in range(len(A[0])): result+=A[i][j
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Instructions

Change the result matrix dimension according to Matrix Dimensions properties
Product of (M*N) and (N*K) matrix is (M*K) Matrix.

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