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Non linear equation solution by FSOLVE command

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Mohammad Yunus Ali
Can anyone post a simple matlab program to solve two or three equations using fsolve function?

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回答（1 个）

Walter Roberson
Walter Roberson 2011-3-5
Here is one online tutorial
  2 个评论
Mohammad Yunus Ali
Mohammad Yunus Ali 2011-3-5
the tutorial is not helpful for me. I tried to write a code like below but its giving error. could u pls correct it?
function f=nle(x)
f(1)=x(1)-4*x(1)^2-x(1)*x(2);
f(2)=2*x(2)-x(2)^2+3*x(1)*x(2);
end
x0=[1 1];
x=fsolve('nle';x0)
Walter Roberson
Walter Roberson 2011-3-5
You missed a sentence,
"Enter the initial guess
x0 = [1 1]'
Note: x0 is the TRANSPOSE of a row vector"
You did not use the transpose.

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