-
Solver fails to solve the following nonlinear system of equations (4th order terms)
```
th = 2400
tk = 320
Solve({th^4 - tw^4 -1.77E-6*qw == 0,
tw^2 - t1^2 +2454*(tw - t1) - 0.2319 *qw ==0,
…
-
### Is your feature request related to a problem? Please describe.
In Matlab, `fsolve` could handle a non-square system using Levenberg-Marquardt algorithm. However, it doesn't work when using `Sc…
-
Imported from SourceForge on 2024-07-06 22:15:21
Created by **[*anonymous](https://sourceforge.net/u/*anonymous/)** on 2010-05-19 09:44:40
Original: https://sourceforge.net/p/maxima/bugs/1988
---
It…
-
Imported from SourceForge on 2024-07-08 01:39:20
Created by **[dbalague](https://sourceforge.net/u/dbalague/)** on 2018-10-17 15:20:16
Original: https://sourceforge.net/p/maxima/bugs/3477
---
To who…
-
@vidanovic In a current research project, we work on interior roller blinds and exhaust air which is removed between the glazing and the roller blind. To calculate the air flow through the textile, we…
-
**Issue by [bgoodri](https://github.com/bgoodri)**
_Tuesday Aug 23, 2016 at 03:11 GMT_
_Originally opened as https://github.com/stan-dev/stan/issues/2023_
----
#### Summary:
Support solving a syst…
-
H Khaled,
Nice work!
A quick question: in the while loop [here](https://github.com/khaledghobashy/uraeus_nmbd_python/blob/ea2364ed328baeb33693494ec669e992e86c1488/uraeus/nmbd/python/engine/nume…
-
Just found this report which tested MINPACK and NL2SOL on a problem originating from a heart model:
> A New Nonlinear Equations Test Problem, J.E. Dennis, Jr., David M. Gay, and
Phuong Ahn Vu, Tec…
-
**Describe the bug 🐞**
Some underdetermined nonlinear systems when simplified have a variable that only occurs on the RHS of observed equations, but is also not an unknown. Thus, it has no value as…
-
There are many applications where direct knowledge of potential evaporation (and/or its relation to simulated evaporation or evapotranspiration) would be of interest. However this is not facilitated b…