Hello.
I am trying to numerically integrate a function using dblquad, but getting errors shown below. Thank you.
octave-3.6.4.exe:3> I = dblquad(@(r,q)r*sqrt(r^2+1-2*cos(2*pi()*q)),0,1,0,1)
error: for A^b, A must be a square matrix
error: evaluating argument list element number 1
error: called from:
error: at line -1, column -1
error: at line -1, column -1
error: quadcc: integrand F must return a single, real-valued vector
error: K:\OctaveVS\share\octave\3.6.4\m\general\dblquad.m at line 72, column 10
error: at line -1, column -1
error: quadcc: integrand F must return a single, real-valued vector
error: K:\OctaveVS\share\octave\3.6.4\m\general\dblquad.m at line 65, column 5