Add Two Matrix in Python
def main():
"""
Prints the sum of two matrices.
"""
# Get the dimensions of the matrices
row_count = int(input("Enter the number of rows in the matrices: "))
col_count = int(input("Enter the number of cols in the matrices: "))
# Read the matrices from the user
print("Enter matrix A:")
a = read_matrix(row_count, col_count)
print("Enter matrix B:")
b = read_matrix(row_count, col_count)
# Sum the matrices together
c = add(a, b)
# Print the result
print("The sum is:")
print_matrix(c)
def add(x: list[list[int]], y: list[list[int]]):
"""
Returns the sum of two matrices.
"""
# Get the dimensions of the matrices
rows_x, cols_x = len(x), len(x[0])
rows_y, cols_y = len(y), len(y[0])
# Check if the matrices can be added
if rows_x != rows_y or cols_x != cols_y:
raise ValueError("Both matrices must have the same dimensions.")
# Initialize the result matrix with zeros
z = [[0] * cols_x for _ in range(rows_x)]
# Iterate over the matrices and sum
for r in range(rows_x):
for c in range(cols_x):
z[r][c] = x[r][c] + y[r][c]
return z
def read_matrix(row_count: int, col_count: int):
"""
Reads a matrix from the console.
"""
matrix: list[list[int]] = []
for _ in range(row_count):
row = list(map(int, input().split()[:col_count]))
matrix.append(row)
return matrix
def print_matrix(matrix: list[list[int]]):
"""
Prints a matrix to the console.
"""
for row in matrix:
for element in row:
print(element, end=" ")
print()
if __name__ == "__main__":
main()