Non- linear equations system solution Gradient descent

Forum|Forum|1 year ago
January 22, 2025
2 replies
1759 views

Hello everyone, maybe someone can help me solve or has a ready-made solution for solving a system of nonlinear equations by the gradient descent method. I use PTC Mathcad Express Prime 9.0.0.0

Mathcad Usage

Best answer by LucMeekes

Incorrect, check the results. You have a square z in the first row, instead of just z.

There are two possible solutions, one is: 1, 1, 3/10 (exactly).

Proof:

The other is approximately

Success!
Luc

T

terryhendicott

21-Topaz II

This is one solution but is possibly not the only one.

G

GrigoriyUkraine

Author

3-Newcomer

Thanks can you send a file?

A

AlanStevens

19-Tanzanite

As Cornel noted, there are 8 solutions. The attached shows how to find them in an Express version of Prime, where there are no solve blocks available.

Just set the value of "column" to any integer between 0 and 7 inclusive to find the various solutions. (I used Prime 8 Express, so you should be able to load it directly into Prime 9 Express).

Alan

1_Simultaneous_in_Express.zip