Solving system of nonlinear euations
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In mathematica we use the command NSolve[{x^2 + y^3 == 1, 2 x + 3 y == 4}, {x, y}, Reals] without needing any initial guess to solve a system of non-linear equations. I need the same command in Matlab to solve system of non-linear equations BUT without needing the initial guess. THANKS
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Sara
2015년 1월 14일
I don't think you can. You'll have to use fsolve, which requires an initial guess. If it's a mathematical exercise, I'd go with an array of zeros; otherwise, if the eqn represent a physical system, you can use some reasonable values (e.g. mass is usually >= 0).
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Shoaibur Rahman
2015년 1월 14일
syms x y
[x,y] = vpasolve(x^2 + y^3 == 1, 2*x + 3*y == 4, x,y)
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Shoaibur Rahman
2015년 1월 15일
I see an extra comma (,) in the very last part of the code. ,,x,y,z,s --- remove one comma. It also seems that you have to define Aphi, Bphi........ with n
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