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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
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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 ...
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8 votes
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Linear ODEs with NDSolve

This eigenvalue problem can be solved largely symbolically as follows. With the equations rationalized, ...
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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: ...
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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 <...
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3 votes
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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 ...
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9 votes
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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 ...
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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 ...
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