using fsolve with arrays

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Tristan 2013-10-6

回答： Walter Roberson 2013-10-6

for example, if I had:

G1=(1:1:10)*0.181881788
G2=(1:1:10)*1.281888281

and I need to find where

sum(G1*sin(G2*x))=0

I tried

x=(fsolve(@(x)sum(G1*sin(G2*x)),cc))

where cc=(1:1:5)

but it doesn't work.

thanks

Walter Roberson 2013-10-6

What happens instead of it working ?

Walter Roberson 2013-10-6

As G1 and G2 and x are vectors, you probably want G1 .* sin(G2 .* x)

otherwise it is going to try to do matrix multiplication and likely fail.

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