I am trying to solve two equations with two unknowns (x(1),x(2)). The problem is when I try a generic type of solver, I get the following error:
??? Undefined function or method 'fsolve' for input arguments of type 'function_handle'.Error in ==> solution at 3[x,fval] = fsolve(@myfun,x0,options)
First, I write a file that computes F, the values of the equations at x.
function F = myfun(x)F = [quad('mexicanh', 0, x(2)-x(1), 1.0e-06)-quad('mexicanh', 0, x(2)+x(1), 1.0e-06)+quad('mexicanh', 0, 2*x(2), 1.0e-06; quad('mexicanh', 0, 2*x(2), 1.0e-06)+quad('mexicanh', 0, 2*x(1), 1.0e-06)-2*quad('mexicanh', 0, x(2)+x(1), 1.0e-06)];
and mexicanh is a function
function y=mexicanh(z)y=exp(-abs(z)).*(sin(abs(z))+cos(z));
then I save this function file as myfun.m and write
x0 = [-5; -5]; options=optimset('Display','iter'); [x,fval] = fsolve(@myfun,x0,options)
Thanks in advance
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