lib for matrix manipulatin python code example

Example 1: how to get matrix element in the form of matrix in python

# A basic code for matrix input from user 
  
R = int(input("Enter the number of rows:")) 
C = int(input("Enter the number of columns:")) 
  
# Initialize matrix 
matrix = [] 
print("Enter the entries rowwise:") 
  
# For user input 
for i in range(R):          # A for loop for row entries 
    a =[] 
    for j in range(C):      # A for loop for column entries 
         a.append(int(input())) 
    matrix.append(a) 
  
# For printing the matrix 
for i in range(R): 
    for j in range(C): 
        print(matrix[i][j], end = " ") 
    print()

Example 2: matrix python math

>>> x = np.array( ((2,3), (3, 5)) )
>>> y = np.matrix( ((1,2), (5, -1)) )
>>> np.dot(x,y)
matrix([[17,  1],
        [28,  1]])