Linked Questions

7
votes
4answers
251 views

Finding largest Range in a list

In a list of positive integers, I would like to find the largest n such that Range[n] is a subset of the list. So for example ...
17
votes
2answers
1k views

New General::munfl error and loss of precision

The latest version 11.3.0.0 of Mathematica returns Indeterminate when evaluating Log[Exp[-800.]]. I believe this was not ...
15
votes
1answer
848 views

Speed up NDSolve compared to Python (calls to LSODA)

I migrated a numerical model code from Python to Mathematica and am surprised how much faster the Python version runs. Profiling of the Python version tells me that it is about 100 times faster (120 ...
14
votes
1answer
473 views

ShowGroupOpener's behavior change in 11.3

Among many settings for a fresh installation I have CurrentValue[$FrontEnd, ShowGroupOpener] = True in order to have sections openers always visible. It does ...
5
votes
2answers
214 views

Reduce applied to vectors doesn't work right?

Reduce[{x,0}=={0,0}, x] gives x==0 as it should, but Reduce[{x,0}!={0,0}, x] gives False, which indicates no solution ...
16
votes
2answers
268 views

Silent change (bug?) of Join after v9

Consider the following sample: Join[{A[x]}, {A[x]}, 2] It causes Join::headsd warning in and before v9 and returns the input: ...
13
votes
1answer
365 views

Is there a good reason for the removal of this FrameTicks syntax?

In past versions of Mathematica one could use a terse syntax for FrameTicks: {bottom, left, top, right} In 10.1 this syntax is no longer recognized requiring the ...
45
votes
1answer
949 views

Is FullGraphics an abandoned function? Is there an alternative?

FullGraphics hasn't worked entirely for a long time and the situation appears to be getting worse instead of better. In Mathematica 10.0, 10.1 up to 11.3 a simple ...
7
votes
3answers
246 views

Different results with DateRange and LeapYearsQ in Mathematica 9 and 10

With Mathematica 9.0 for Mac OS X x86 (64-bit) (January 24, 2013) one could use DateRange[{2000}, {2010}, "Year"] to achive ...
8
votes
1answer
270 views

How does Hash calculate hash for strings?

I have this code Hash["a","SHA"] Hash[ToCharacterCode["a"],"SHA"] and I was expecting to get the same result, but somehow it is different. My question is: how ...
6
votes
1answer
352 views

FindFaces in Mathematica 11.3

I just upgraded to Mathematica 11.3. but now my FindFaces instructions do not work anymore. I guess they changed the syntax in 11.3. Here is the original code: <...
18
votes
1answer
708 views

How to add named characters to Mathematica 10 or later?

Any news regarding this for Mathematica 12? It appears that native support for the Klingon alphabet has been removed from version 10: \[KlingonA] Syntax::...
14
votes
1answer
542 views

Why does GridLines option fail with Function?

Bug introduced in 10.0.0 and fixed in 10.0.1 The Plot option GridLines can be specified either as a list of explicit values at ...
11
votes
2answers
343 views

Catching MachineUnderflow in Version 11.3

Ilian's answer to question 72229, involves SetSystemOptions["CatchMachineUnderflow" -> False] Evidently, this worked in earlier versions of Mathematica, but ...
8
votes
2answers
124 views

interpretation of <-> as UndirectedEdge in 11.2?

I have a package developed in earlier versions of Mathematica. In it, I use the notation x_ <-> y_ for undirected edges. When I use this package in 11.2, ...

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