Python : Updated Minor Assignment 4

Author: SOMNATH0904

5. Fifth_Semester/PYTHON/Minor Assignment 4/Q12.py

@@ -0,0 +1,21 @@
+'''
+Ques 12: Define a function that returns the sum of all the elements in a specified column in a matrix. Write a
+Python program that reads a 3-by-4 matrix and displays the sum of each column. Here is a sample
+run:
+Enter a 3-by-4 matrix row by row:
+1.5 2 3 4
+5.5 6 7 8
+9.5 1 3 1
+'''
+
+def column_sum(matrix, col_index):
+    return sum(row[col_index] for row in matrix)
+
+matrix = []
+print("Enter a 3-by-4 matrix row by row:")
+for _ in range(3):
+    row = list(map(float, input().split()))
+    matrix.append(row)
+
+for col in range(4):
+    print(f"Sum of column {col + 1}: {column_sum(matrix, col)}")