function x=solv(a,b) while round((a*x​-1)/b)~=(a​*x-1)/b x=x+1; end this function is showing error while running: ??? Undefined function or method 'solv' for input arguments of type 'double'. please help me to solve this problem..

function x=solv(a,b) 
while round((a*x-1)/b)~=(a*x-1)/b 
x=x+1; 
end   
above function is showing error while running: ???
Error is: Undefined function or method 'solv' for input arguments of type 'double'.    
please help me to solve this problem...

Answer 1

[Wayne King]

The error message your getting is because solv.m is not in a folder (directory) on the MATLAB path.

Let's say that you have your solv.m in a folder called c:\mfiles. You must do the following, either:

>>addpath 'c:\mfiles'

or enter

>>pathtool

and add the folder using the UI.

If you have done it successfully, you should be able to enter:

>>which solv.m

and get the path back to your M-file returned.

However, even then your function will error:

Your while statement references a variable, x, but you never define x in your function prior to using it, nor do you pass x as an input to the function.

The function will error saying that x is undefined

Answer 2

[Azzi Abdelmalek]

In this line

while round((a*x-1)/b)~=(a*x-1)/b

What is the value of x? your code is supposed to calcul x