hello,everyone.I'm new here.how can i get the whole answers of an one yuan polynomial equation using fsolve?thank you so much
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for example: x^7+2*x^5+3*x^3+x+7=0; I process as follows: function y=f1(x) y= x^7+2*x^5+3*x^3+x+7; command: y=fsolve('f1',-1,1) there is only an answer.
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Accepted Answer
Mischa Kim
on 14 May 2014
Edited: Mischa Kim
on 14 May 2014
How about
syms x
sol = solve(x^7 + 2*x^5 + 3*x^3 + x + 7==0)
As described in the documentation, fsolve can only handle real variables. For this problem you would have to split x into real and imaginary parts.
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