All Questions
2,124 questions
8
votes
0
answers
167
views
CollinearPoints returning True for noncollinear points
I think there might be an issue with CollinearPoints at least in the 14.2 Windows version I'm using. The issue arises where there are duplicate points and mixed ...
- 872
4
votes
0
answers
186
views
Make graphics units exactly 1 cm in exported PNG/PDF to match LaTeX TikZ picture coordinates
Bug introduced in 14.3 or earlier.
Question has been amended — see below
How can I make a plot, such as from the following, so that the spacing of the points x = 1, 2, 3 on the x-axis and y = 1, 2, 3,...
- 12.2k
5
votes
0
answers
97
views
Avoid MonomialList applying N to coefficients containing floats
For inexact coefficients MonomialList seems to apply N.
How to avoid this?
...
- 3,516
7
votes
1
answer
140
views
What is the behavior of `FromRomanNumeral` on inputs with non-roman characters?
The documentation for the FromRomanNumeral function states that
any combination of valid digits is interpreted as an integer:
...
- 1,720
3
votes
1
answer
197
views
circumventing apparent errors in Integrate and NIntegrate
I have been working on a wiki page about asymptotic Laurent series for derangements, and recently learned that the converse of Watson's lemma often holds, allowing one to represent such series as ...
- 151
0
votes
0
answers
83
views
Result of Series inconsistent with requested order of expansion
Consider the following simple Series invocation,
Series[a*x^2, {x, 0, 1}]
In Mathematica 14.3 it returns
a*x^2+O[x]^3
This ...
- 43
3
votes
0
answers
125
views
Why solution to this ode satisfies the IC but not the ode itself?
Reported: [CASE:5287941] DSolve gives wrong solution. V 14.3
Using V 14.3, why DSolve gives solution $y=0$ which satisfies the IC given, but not the ode itself?
...
- 156k
4
votes
2
answers
303
views
Conflicting results for the two forms of the same integral
(Edited to emphasize the point about assumptions).
Consider a simple integral:
Integrate[Exp[I x/2], {x, 0, 2 Pi}]
Mathematica produces the following answer: ...
- 43
0
votes
0
answers
72
views
Propagation of errors:
I am working on error propagation in Mathematica for a physics calculation involving tau lepton decay. I have a complex function that calculates the lifetime of the tau lepton based on various ...
8
votes
1
answer
353
views
Compile kills kernel with no warnings
Trying to compile this function kills my kernel (14.3.0 and 14.1.0, MacOs 15.2).
(n.b. It is a function that computes the collision time at which two disks with radii=1 with xy-positions pair[[1,1]] ...
- 7,554
15
votes
2
answers
575
views
Unexpected behavior of `Series` for version 14.3?
Bug introduced in 14.3 or earlier and persisting through 14.3.0 or later
Consider the simple example
$Version
Series[\[Chi],{\[Chi],0,0}]
Before version 14.3, the ...
- 3,467
3
votes
1
answer
229
views
Series expansion involving incomplete Beta function
I am trying to expand the following around u=1/2.
...
- 1,957
6
votes
0
answers
297
views
5
votes
1
answer
218
views
CircularArcThrough[points] does not return a circular arc through points
Bug introduced in 14.2 or earlier, fixed in 14.3.
...
- 329
4
votes
1
answer
201
views
