Python Program to Find the Sum of Each Row and Each Column of a Matrix

Python program to find the sum of each row and each column of a matrix.

In this article, you will learn how to make a python program to find the sum of each row and each column of a matrix.

Example

You should have knowledge of the following topics in python programming to understand these programs:

• Python input() function
• Python For loop

Source Code

# Python Program to Find the Sum of Each Row and Each Column of a Matrix
print ("-----Enter the number of rows & columns of the matrix-----")

# These are the matrix's dimension
x = int (input ())
y = int (input ())

a, sum = [], 0

print ("\n-----Enter the coefficients of the matrix-----")
for i in range (x):
    a.append([])
    for j in range (y):
        a[i].append(int (input ()))

    print (end="\n")

# This statement will compute the
# sum of the matrix's rows elements
for i in range (x):
    for j in range (y):
        sum = sum + a[i][j]

    print ("The Sum of the ", i, " position row is = ", sum)
    sum = 0

print (end="\n")
sum = 0

# This statement will compute the
# sum of the matrix's columns elements
for j in range (y):
    for i in range (x):
        sum = sum + a[i][j]

    print ("The Sum of the ", j, " position column is = ", sum)
    sum = 0

Run

Output

Explanation

In this given program, we have taken the inputs size of matrix rows and columns 4 and 3 then we collected coefficient values of the matrix from the user via the system console.

Then we applied for loop on this matrix twice a time to make the sum of its coefficients row-wise and column-wise.

Then this will return the final output of these sums row-wise 47, 89, 99, and 113 & column-wise are 136, 122, and 90 of the above program.

Python Program to Find the Sum of Each Row and Each Column of a Matrix using While Loop

# Python Program to Find the Sum of Each Row and Each Column of a Matrix using While Loop
print ("-----Enter the number of rows & columns of the matrix-----")

# These are the matrix's dimension
x = int (input ())
y = int (input ())
a, sum = [], 0

print ("\n-----Enter the coefficients of the matrix-----")

i=0
while (i < x):
    a.append([])
    j=0
    while (j < y):
        a[i].append(int (input ()))
        j=j+1

    print (end="\n")
    i=i+1

# This statement will compute the
# sum of the matrix's rows elements
i=0
while (i < x):
    j=0
    while (j < y):
        sum = sum + a[i][j]
        j=j+1

    print ("The Sum of the ", i, " position row is = ", sum)
    sum=0
    i=i+1

print (end="\n")
sum=0

# This statement will compute the
# sum of the matrix's columns elements
j=0
while (j < y):
    i=0
    while (i < x):
        sum = sum + a[i][j]
        i=i+1

    print ("The Sum of the ", j, " position column is = ", sum)
    sum=0
    j=j+1

Run

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