fde12 function is not found

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Wei Zhang
Wei Zhang on 5 Nov 2021
Commented: Wei Zhang on 14 Nov 2021
I was trying to solve a ODE with fractional derivative using fde12 function. My codes are:
a = 1; mu = 4;
fdefun = @(t,y) [a-(mu+1)*y(1)+y(1)^2*y(2); mu*y(1)-y(1)^2*y(2)];
alpha = 0.8;
t0 = 0 ; tfinal = 100 ; y0 = [ 0.2 ; 0.03];
h = 2^(-6);
[t, y_fde12] = fde12(alpha,fdefun,t0,tfinal,y0,h);
However, the error is:
'fde12' is not found in the current folder or on the MATLAB path, but exists in:
C:\Users\zhang\AppData\Local\Temp\AweZip\Temp1\AweZip5\Gappappa's Codes
Change the MATLAB current folder or add its folder to the MATLAB path.
Error in fde12function (line 12)
[t, y_fde12] = fde12(alpha,fdefun,t0,tfinal,y0,h);
I was thinking fde12 is a inbuilt function... but it is not working...
Please help... Thanks

Accepted Answer

Navya Singam
Navya Singam on 8 Nov 2021
fde12 is not a MATLAB inbuilt function. It is available as a part of the File Exchange submission. You can download and add it to the MATLAB path and use it as a normal function.

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