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seen Apr 14 at 14:43

Jan
14
accepted Why FullSimplify doesn't work here?
Jan
14
accepted Definitions inside ParallelTable?
Jan
14
comment How to make the Mathematica icon flash in the taskbar?
@MikeLimaOscar SystemDialogInput["FileSave"] makes the taskbar icon flash. But it also brings up a File Save dialog that can be confusing. I guess I can use it temporarily. But it would be nice if there was a command that made the taskbar flash without side effects.
Jan
14
comment How to make the Mathematica icon flash in the taskbar?
@rm-rf It may be OS dependent. But it is specific to Mathematica. I want a Mathematica command (similar to Beep[]) that makes the taskbar flash.
Jan
14
revised How to make the Mathematica icon flash in the taskbar?
added 408 characters in body
Jan
14
comment How to make the Mathematica icon flash in the taskbar?
@mm.Jang The problem with Beep[] is that if you leave the computer for a while and return, and you can miss the beep. The icon flashing remains flashing indefinitely.
Jan
14
revised How to make the Mathematica icon flash in the taskbar?
edited title
Jan
14
asked How to make the Mathematica icon flash in the taskbar?
Jan
14
comment Extract table from image
+1. But I've found one error: m[[28,28]] gives -1. It should be 1.
Jan
13
comment Extract table from image
@Anon But I don't think you can define a priori (that is, before seeing the image) where the columns are going to be.
Jan
13
comment Extract table from image
@anon You can also assume that you know the dimensions of the matrix. In this example, the matrix is 46x34. The columns and rows are clearly delineated in the image.
Jan
13
comment Extract table from image
@rm-rf Yes. You can assume that the values are all in the set {-1, 0, 1, 2}.
Jan
13
asked Extract table from image
Jan
13
accepted Function that returns the binary string given its index in lexicographic ordering
Jan
7
comment Why x = x doesn't cause an infinite loop, but f[x_] := f[x] does?
I agree @LeonidShifrin and IstvanZachar. This doesn't answer my question.
Jan
7
revised Why x = x doesn't cause an infinite loop, but f[x_] := f[x] does?
edited title
Jan
7
awarded  Nice Question
Jan
7
comment Why x = x doesn't cause an infinite loop, but f[x_] := f[x] does?
@JacobAkkerboom I agree. I think that x:={x} and x:=Identity[x] are explained by @MichaelE2's comment above (referencing reference.wolfram.com/mathematica/tutorial/…). Your point is that @MichaelE2's explanation works for all the examples that reach $RecursionLimit? If yes, you should add that to your answer (Extended comment)... It could be helpful to reach a complete answer.
Jan
7
comment Why x = x doesn't cause an infinite loop, but f[x_] := f[x] does?
@JacobAkkerboom It makes no difference to me that the infinite loop is due to IterationLimit or to RecursionLimit.
Jan
7
comment Why x = x doesn't cause an infinite loop, but f[x_] := f[x] does?
@m_goldberg I would like an explanation that starts from the evaluation mechanism of Mathematica. There should be a general principle (I hope) that establishes when there is infinite recursion and when there isn't.