fsolve for matrix input
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Hi everyone,
I'm trying to solve a system of nonlinear equations using fsolve where the unknows are a matrix of size 2xS (S could be any integer larger than 1). However, I am getting an error for a sample that I'm trying to solve first. Here is the function and the script:
function z = myfun(x,y)
a = [2 1 3 4];
b = [5 10 20 30];
z(1,1:length(x)) = log(x.^a)-y+b;
z(2,1:length(x)) = log(y.^a)-x+b;
main script:
clc
clear
F = @(x,y)myfun(x,y);
x0 = rand(1,4);
y0 = rand(1,4);
x = fsolve(F,[x0;y0]);
It gives me this error:
Not enough input arguments.
Error in dummyfsolve>@(x,y)myfun(x,y)
Error in fsolve (line 230)
fuser = feval(funfcn{3},x,varargin{:});
Error in dummyfsolve (line 8)
x = fsolve(F,[x0;y0]);
Caused by:
Failure in initial objective function evaluation. FSOLVE cannot continue.
Any help on this is highly appreciated.
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