Overview

In this tutorial, we will learn about Octave Subtraction Operator with Examples.

Octave Subtraction Operator

The subtraction operator in Octave is minus (-). The – operator is a binary operator. It requires two operands for mathematical computation. The operands can be scalars or matrices.

Examples

Subtracting scalar operands

If the operands are scalars the subtraction operator subtracts the operands. Here in this example, x and y are scalar operands. We use the – operator to subtract and store the result in a variable called result.

>> x = 9;
>> y = 7;
>> result = x – y;
>> result

result = 2

Subtracting matrices

If the operands are matrices, the number of rows and columns of the operands must agree or must be broadcastable.

We can use the  .-  operator for the element-wise subtraction of the matrices.

>> x = [ 5 6 ; 7 8];

>> y = [ 2 4 ; 5 6];

>> result = x .- y ;

>> result

result =

3        2

2         2

—

Octave Tutorials

GNU Octave Tutorials on this website can be found at:

https://www.testingdocs.com/octave-tutorial/

For more information on Octave, visit the official website:

https://www.gnu.org/software/octave/index