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1-AUG-2019 SolveSys - Equation Library and Nonlinear Systems Solver
05-05-2019, 08:10 PM
Post: #111
Not able to solve a system
Hello,

I'm trying to solve the following system using SolveSys:
(X/Y)^Z = 1/8
2^X/3^Y=4/Z^4
X*Y/Z=8/3

On the HP50g, I just use the equation writer to place all 3 equations on the stack, then create an array with them. I then create an array with [X Y Z] and another with my initial guesses [1 1 1]. I go to NUM.SLV-->MSLV and then get an array with 2, 4 and 3 as the answers.

However, when trying to solve this system on the Prime using SolveSys, I get the following message: Newton iterations terminated but ||F|| failed tolerance
The (incorrect) answers that I get are X=1.505 Y=4.984 Z=2.759

What am I doing wrong?
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Not able to solve a system - rrpalma - 05-05-2019 08:10 PM



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