Questions tagged [equation-solving]
Questions on the analytic and numerical equation solving functions of Mathematica (Solve, Reduce, NSolve, FindRoot, DSolve, RSolve, etc.).
6,862 questions
0 votes
0 answers
63 views
The heat conduction equation of solar cells can't be solved [duplicate]
The heat conduction equation of solar cells can't be solved. NDSolveValue::ndnum: Encountered non-numerical value for a derivative at x == 0. ...
- 67
-1 votes
0 answers
120 views
We cannot numerically solve the heat conduction equation of solar cells, where Q is the heat generation term [closed]
The heat conduction equation of solar cells cann't be solved. NDSolveValue::ndnum: Encountered non-numerical value for a derivative at x == 0.`. NDSolveValue::femcnsd: The PDE coefficient -((2.4810^-...
- 67
2 votes
2 answers
269 views
The general solution from Solve does not simplify to the specific case
I am trying to get a solution of equation with many parameters. The general solution does not seem to reduce to a specific one. The specific solution with all parameters known is ...
- 5,650
5 votes
4 answers
832 views
Are there any good ways to improve this code so that it can solve the geometry problem？
While using Mathematica to solve the following geometry problem, my computation has been running for a long time without producing any result. The geometry problem is: Quadrilateral $ABCE$ is a ...
- 345
4 votes
2 answers
128 views
Parameter search problem for satisfying an inequality
I am working with a $2 \times 2$ matrix ...
- 765
1 vote
1 answer
151 views
Symbolically solving a set of three-variable nonlinear equations fails to get a simplified result
I want to use Solve to find symbolic solutions of the following set of equations and get simplified or factorised symbolic solutions. The equations are ...
- 73
0 votes
1 answer
69 views
Using the Solve function appropriately
I will discuss the background of this problem first. I have an automated code, which solves linear equations recursively. The number of equations could be of the order of thousands. And, more ...
- 379
4 votes
2 answers
384 views
Why doesn't InverseFunction give a continuous function?
I would like to get a smooth solution using InverseFunction. However, the code doesn't work as I expected. ...
- 111