New answers tagged numerics
2
votes
Linear ODEs with NDSolve
I have a package for solving eigenvalue boundary value problems using the Compound Matrix Method with the Evans function, which I'll use here. The package is available on my GitHub (which has a ...
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6
votes
Accepted
How to remove zero after the comma in a plot
As thorimur and Michael E2 said , I just applied
SetOptions[$FrontEnd,PrintPrecision -> 10]
to change the global option setting for PrintPrecision. I get
Thank ...
- 601
8
votes
Accepted
Linear ODEs with NDSolve
This eigenvalue problem can be solved largely symbolically as follows. With the equations rationalized,
...
- 58.4k
7
votes
Linear ODEs with NDSolve
Update
As mentioned by bbgodfrey and by Michael E2, the code I had proposed below only returns a trivial constant solution, as the following indicates:
...
- 60.1k
2
votes
Problem with a DAE and DiscreteVariables
As stated in the question, a[t] does not behave properly for the code in the question, which probably is a bug. Circumventing this problem can be accomplished with
<...
- 58.4k
3
votes
Accepted
How to handle very numbers that are "too small to represent as a normalized machine number"?
Apart from the replacement of 0.5 with 1/2 that was already suggested in the comments, note that when you are computing things ...
9
votes
Accepted
How to shoot backwards using the "Shooting Method"?
The "StartingInitialConditions" suboption sets the IC at x == 0.9, and with good values for the IC, a successful ...
- 216k
3
votes
Is function MiniMaxApproximation equivalent to Remez algorithm?
According to the documentation,
MiniMaxApproximation works using an iterative scheme.The first step is to construct a rational approximation using ...
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4
votes
Is function MiniMaxApproximation equivalent to Remez algorithm?
The simple answer is: Yes, it attempts to find the minimax polynomial approximation, if the degree of the denominator is specified to be zero. As is probably known, there is no known way to solve ...
- 216k
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