MATLAB - Scalar Operations of Matrices

When you add, subtract, multiply or divide a matrix by a number, this is called the scalar operation.

Scalar operations produce a new matrix with same number of rows and columns with each element of the original matrix added to, subtracted from, multiplied by or divided by the number.

Example

Create a script file with the following code −

a = [ 10 12 23 ; 14 8 6; 27 8 9];
b = 2;
c = a + b
d = a - b
e = a * b
f = a / b

When you run the file, it displays the following result −

c =
      12    14    25
      16    10     8
      29    10    11
d =
      8    10    21
      12     6     4
      25     6     7
e =
      20    24    46
      28    16    12
      54    16    18
f =
      5.0000    6.0000   11.5000
      7.0000    4.0000    3.0000
      13.5000    4.0000    4.5000