error: `fminsearch' undefined - Octave 3.2.4 Win7 64bit

[jammydav93]

Hi everyone,

I'm pretty new to Octave and am having trouble using fminsearch on my
Windows 7 machine,

i'm trying to use fminsearch to find a,b,c,d from my predetermined x and y
values 

x=[1:100]

fmp.m:
function y=fmp(x)
y=a*cos(b*x + c) .* exp (x/d)

I then enter and get the following from Octave

octave-3.2.4.exe:6> fminsearch(@fmp,x)
error: `fminsearch' undefined near line 6 column 1

can anyone help me with this?

Thanks

J





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