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Java Program to subtract the two matrices

In this program, we need to get the result of subtraction of two matrices.

Two matrices A and B can be subtracted if and only if they have same dimensions that are, the same number of rows and columns. It is not possible to subtract a 2 × 3 matrix from a 3 × 2 matrix. Subtraction of two matrices can be performed by subtracting their corresponding elements as

Java Program to subtract the two matrices

Subtraction of two matrices can be performed by looping through the first and second matrix. Calculating the difference between their corresponding elements and store the result in the third matrix.

Algorithm

  • STEP 1: START
  • STEP 2: DEFINE rows, cols
  • STEP 3: INITIALIZE first matrix a[][] ={{4,5,6},{3,4,1}, {1,2,3}}
  • STEP 4: INITIALIZE second matrix b[][] ={{2,0,3}, {2,3,1}{1,1,1}}
  • STEP 5: rows = a.length
  • STEP 6: cols = a[0].length
  • STEP 7: DEFINE diff[][]
  • STEP 8: REPEAT STEP 9 to STEP 10 UNTIL i<rows
                //for(i=0;i<rows; i++)
  • STEP 9: REPEAT STEP 10 UNTIL j<cols
                //for(j=0;j<cols; j++)
  • STEP 10: diff[i][j] =a[i][j] - b[i][j]
  • STEP 11: PRINT "Subtraction of two matrices:"
  • STEP 12: REPEAT STEP 13 to STEP 14 UNTIL i<rows
                //for(i=0;i<rows; i++)
  • STEP 13: REPEAT STEP 14 UNTIL j<cols
                //for(j=0; j<cols; j++)
  • STEP 13: PRINT diff[i][j]
  • STEP 14: PRINT new line
  • STEP 15: END

Program:

Output:

Subtraction of two matrices:
1	5    3
1    1    0
0    1    2
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