The outputs of fsolve function are complex

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huan tu
huan tu 2013-5-8
Hi all! I use the fsolve function by incorperating a interpreted matlab function block.The outputs of fsolve function are complex and the iteration is rather slow, but my expectation is real number, so what's the problem, how can i debug it?

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Youssef Khmou
Youssef Khmou 2013-5-10
编辑：Youssef Khmou 2013-5-10
hi,
it depends on the input function, for example the solution may contain a logarithm of negative value which is complex number,
you can use the 'abs' or 'real' function to the output.

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