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(also known as Spartacus)


See those two pins? Well today I'm going to... stick them in you.


Ok, let me come clean: Mr.Wizard is actually an alias of mine... I'm glad I can finally confess. ― Sjoerd C. de Vries

No, I'm Spatac... I mean, Mr.Wizard! ― R.M

I'm Mr.W, and so's my wife! ― acl


@Spartacus, it was not fixable. ― rcollyer

check again; I just fixed it. :-p ― Spartacus


"This is the internet, where the men are men, the women are men and the children are FBI agents..." ― yoda Dec 18 '11 at 6:06


"My main purpose of being here is in collecting the votes. I'd even go further and say that this is my main purpose in life." ― Leonid Shifrin


"I am making some voodoo dance and invoking the rain God while we talk" ― belisarius


Some people are fortunate. Others get married. ― belisarius


It's not that easy to do the untangling even manually though. – Szabolcs

Maybe you could turn it into a puzzle and let other people do the untangling :-) – Heike

I could make a web based game, and feed all my graphs to the visitors.
SE is a big game, isn't it? :D – Szabolcs


"ListContourPlot crush on simple 5-points data" (Question title)

"Yes, this must be love at first sight."ruebenko


... but I am working with a large body of code written by an incompetent fool (i.e. myself, several years ago...) – Simon Woods


I was tempted to edit your title: "Do rules rule?" But my nose is still bleeding as a result of a limerick. – belisarius


No, but they nowadays let me turn off the lights at night; 24 hours of fluorescence was really starting to make me feral. Brett says I should also mention the tip jar... – Daniel Lichtblau Mar 13 '12 at 20:48


Project Euler


1d
revised Largest matrix size supported by Mathematica 10
edited tags
1d
answered Largest matrix size supported by Mathematica 10
2d
comment Incorrect use of Scaled causes crash
Confirmed in 10.0.2 under Windows 7.
2d
comment Applying the square root of operator on polynomial functions
How exactly would MATlab help in this case?
2d
comment How to efficiently get a list like this?
Very nicely done. +1
2d
comment How to use a list of rules as a data set
Unless you need numeric equivalence in the modelName parameter you can reduce the first function to openModel[modelName_] := Cases[test, (modelName -> res_) :> res, 2]
2d
revised Why does Mathematica add Hold to the result of my user defined symbol?
added 15 characters in body
2d
revised Why does Mathematica add Hold to the result of my user defined symbol?
added 1301 characters in body
2d
reviewed Close How to rewrite a nested loop with Reap and Sow
2d
reviewed Reopen Creating Scheduler
Jan
25
comment Delayed evaluation of assignment
Richard, I am not really familiar with the "macro" functionality to which you refer but metaprogramming is certainly possible. In fact the Accepted answer to this Question does what I think you describe: it assembles assignments and passes them to Block.
Jan
25
comment Is the divergence between Round and setting an explicit precision intentional or a bug?
@MichaelE2 Surely it is not a duplicate. Rather I hope that the old question could be edited to include both (all) issues, making it a "canonical reference" for rounding-method-issues in Mathematica. I would appreciate your help with the necessary editing if you feel this is a reasonable goal.
Jan
25
comment Delayed evaluation of assignment
Related: (28610), (31708), (55833), (69590)
Jan
25
comment Is the divergence between Round and setting an explicit precision intentional or a bug?
Michael, I would like to merge this question with (29122) if possible. Do you feel that this is reasonable?
Jan
25
revised Permanently rounding numbers/values to a given number of significant figures
added 242 characters in body
Jan
25
comment Permanently rounding numbers/values to a given number of significant figures
@David Why did you start using N instead of the provided f? That's the point of this Q&A isn't it?
Jan
25
comment how to make graphic timelines in mathematica
Pardon me, but how is this supposed to be used?
Jan
25
comment Permanently rounding numbers/values to a given number of significant figures
@David What am I missing here? Who said anything about "all digits" before this? 3.14`3. does not have dozens of of digits?! If you want three digits of precision you must use this input form, otherwise the number is interpreted as machine precision.
Jan
25
comment Permanently rounding numbers/values to a given number of significant figures
@David Well yes, that's necessary for meaningful use within Mathematica. If you copy to an external application you should get only 3.14. You can use Copy As Plain Text to get the same result within Mathematica. However you of course loose the precision setting this way and the numbers return to machine precision.
Jan
25
comment Animate point go round a triangle
@Jinxed Complete.