Functions: converting Fahrenheit to Celsius

The question is to write a function f_to_c that accepts a temperature in degrees Fahrenheit and returns the temperature in degrees Celsius. The equation is:

T(in °C) = 5/9[T(in °F) - 32.0]

this is my whole script file and I keep getting this error when I try to use the function

>> f_to_c(100)

Error: File: f_to_c.m Line: 25 Column: 20

Function with duplicate name "f_to_c" cannot be defined.

can anyone tell me what is going on?

function Celsius = f_to_c(Fahrenheit)
Celsius = (5/9)*(Fahrenheit-32);

end

[madhan ravi]

which f_to_c -all % what shows up?

[Adam]

That can't be your whole script file if an error is pointing to line 25! Your function should be in its own file.

[steven butera]

I changed the file name before and got this when i tried to run the program

>> f_to_c(100)

'f_to_c' is not found in the current folder or on the MATLAB path, but exists in:

Change the MATLAB current folder or add its folder to the MATLAB path.

% Script file: f2c.m
%
% Purpose:
% To convert temperature from degrees Fahrenheit by 
% inputting degrees Celsius in MATLAB
%
% Record of revisions:
%   Date           Programmer              Description of change
% ========       ==============          =========================
% 03/18/19         S. Butera             Ver. 1.0, excercise 6.6 
%
%
% Variable Definitions:
% Fahrenheit -- degrees in fahrenheit
% Celsius -- function name 





% Clear Workspace
clear;

%declare function
function Celsius = f_to_c(Fahrenheit)
Celsius = (5/9)*(Fahrenheit-32);

end

[steven butera]

Sorry I realized I was clearing the workspace and variables, it's working

Answer 1

[Walter Roberson]

When you define a function inside a script, the function cannot have the same name as the script .m file.

Answer 2

[Ahmad Saleh Faraz]

lsius = f_to_c(Fahrenheit)

Celsius = (5/9)*(Fahrenheit-32);