Question: fsolve doesn't solve the obvious

November 20 2012 hossayni 15
Maple 16
0

In the name God,

Hello all,

I'm a maple16-x64 user.

I am to solve a nonlinear 3-equation-system (Vector RO) for which I have It's exact solution up to 90 digits(Vector valued;)

http://bayanbox.ir/blog/hossayni/codes/RO.m?download

http://bayanbox.ir/blog/hossayni/codes/valued.m?download 

Unbelievably, when I pass the exact values as initial to fsolve() function, it can't solve it.

restart;

Digits:=90:

read "RO.m"

read "valued.m"

fsolve({seq(RO[i],i=1..3)},{seq(oO[i]=valued[i+1],i=0..2)};

 

To confirm about the initial values you may check it so:

y:=evalf(eval(RO,{seq(oO[i]=valued[i+1],i=0..2)})):

Vector(3,i->(round(10^90*y[i])/10^90));

Which yields zero vector.

 

All of the instructions are here:

http://bayanbox.ir/blog/hossayni/codes/solver.mw?download

 

Best regards

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