Introduction

In this tutorial, we will learn about user-defined functions in Octave. User-defined functions are stored in a separate file with the filename as the function name.

User-defined function

Let’s write a sample function to convert Fahrenheit temperature to Celsius temperature.

We will use the following conversion formula:

 

 

  function [Celsius] = FahToCel(Fahrenheit)
% Function: FahToCel.m
% 
Celsius = 5*(Fahrenheit-32)/9;
endfunction

Function Call

We can invoke the function with the function name and pass the parameters.

%Sample Usage
% How to invoke the user defined function
celsius = FahToCel(50);
disp(celsius);

 

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Octave Tutorials

Octave Tutorial on this website can be found at:
https://www.testingdocs.com/octave-tutorial/

More information on Octave can be found on the official website:
https://www.gnu.org/software/octave/index