Self-Created function won't work anymore

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Cassie Thompson
Cassie Thompson 2023-2-27
回答： Cassie Thompson 2023-2-27
Why won't my function work anymore after closing matlab? I had created a function, it was working fine, then I closed the program and reopened it later, tried to use the same function and got this error:
"Execution of script Fermat as a function is not supported:
D:\Documents\School Assignments\Res - Spring Semester
(2023)\MATH307\Assignments\Fermat.mlx"
It is in the directory that is set as the one I'm in, so I know that's not the issue. Just in case it's needed this is the code of my function.
"function [a,b] = Fermat(n)
%Fermat function: Performs Fermat Factorization
% This code takes the input (n) and uses it to calculate the starting
% step value for s, which is the first of the two squares subtracted to
% create the input value of n.
% It then runs the input into a loop that calculates by step s values
% until the difference between the square root of s^2-n and the integer
% value smaller than that value is zero, meaning that it is itself an
% integer.
% Once the value of s is determined it then outputs the two factors of
% n by taking s and t (the two squares) and adding and subtracting
% them.
s=ceil(sqrt(n));
i=1;
while i>0||i<0
s=s+1;
arg=sqrt(s^2-n);
i=arg-floor(arg);
end
s;
t=sqrt(s^2-n);
a=(s-t);
b=(s+t);"

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回答（1 个）

Cassie Thompson
Cassie Thompson 2023-2-27
I think I figured it out, I had a live script by the same name in the same directory and I think that confused matlab when I went to call it.

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