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Version 10 empowered!


(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


Project Euler


2h
comment Recognizing special cases of a defined function for permuted arguments
@Quantum I keep forgetting about this. Once again I don't have (or want to take) time for this right now. (It's Labor Day here and fine weather too.) What you want should certainly be possible.
12h
comment Saving a notebook as PDF, preserving syntax highlighting
Your screenshot didn't post correctly.
12h
comment How to convert a string of number into real numbers without precision loss
@jason does the StringReplace code at the top work correctly?
12h
comment Importing High Precision (22 digits) data from a file
Related, perhaps duplicate: (33498), (38952). I'm too tired to answer now; if no one else does in the next day remind me and I shall.
1d
comment Set of integers not divisible by smaller set of primes
This is related to the memory optimization I had in mind but you executed it better than I would have. (And Min[n, PrimePi @ x] didn't occur to me.) :-) I found a method complementary to this; see my updated answer.
2d
comment Set of integers not divisible by smaller set of primes
@martin Although I haven't found anything faster than the code above there are memory optimization to be made especially when n is large relative to x, e.g. in the case where the result is {1}. I'll add these later today if I have time.
2d
comment Set of integers not divisible by smaller set of primes
@martin Thanks for the Accept. I usually recommend waiting 24 hours first, to let everyone around the world have a chance to answer. However in this case I doubt there is a generally faster method available as this already makes use of highly optimized operations. Compilation to C could be faster still of course, but I don't do that. ;^)
Aug
29
comment How to find the integer solution number of a linear system with inequalities?
+1 for a great answer and your first Enlightened badge. :-)
Aug
29
comment Disable alert message with internet connectivity off
I can't seem to reproduce this problem so I can't test a solution, but try putting Off[PacletInstall::offline] in your kernel/init.m file; it may load soon enough to have effect.
Aug
29
comment “There are no symbols matching \”\!\(\“Global`*\”\)\“”
Also see: (853) and (23926)
Aug
29
comment “There are no symbols matching \”\!\(\“Global`*\”\)\“”
You should not normally need to use Remove. Based on your image I think it is being used proactively to prevent name collisions, but as you have discovered if there are no Global` Symbols you get a (harmless) error message. You should use ClearAll["Global`*"] instead.
Aug
29
comment “There are no symbols matching \”\!\(\“Global`*\”\)\“”
Presumably you have a Remove["Global`*"] somewhere, but without more information this question cannot be answered so I am putting it on hold.
Aug
29
comment WordData [ ] returns ReplaceAll::reps error message
@Schopenhauer Please include the full output of System`Dump`AutoLoad[Hold[CountryData], Hold[CountryData], "DataPaclets`CountryData`"] // TracePrint in your Question. (Run the command in a fresh kernel.)
Aug
29
comment WordData [ ] returns ReplaceAll::reps error message
@Schopenhauer Okay, next check added to my "answer."
Aug
29
comment WordData [ ] returns ReplaceAll::reps error message
Possibly related: (29216), (39110). No solutions there, unfortunately.
Aug
29
comment WordData [ ] returns ReplaceAll::reps error message
Please include the details of your system, e.g. Mathematica version, platform, etc.
Aug
29
comment Splitting strings at lower case characters and numbers
@s0rce Thanks for the Accept.
Aug
29
comment Splitting strings at lower case characters and numbers
A powerful use of regular expressions. Is it possible to write this as a StringExpression? I can't think of a way at the moment.
Aug
28
comment Splitting strings at lower case characters and numbers
There is a precision about this that I like, and I can see the effort that you put into it. +1 One could replace the second part with: StringCases[string, DigitCharacter .. | elements] if desired. Also, these string functions are set up to work with lists of patterns so I believe you can drop the Apply[Alternatives, part.
Aug
28
comment Purpose of construct `With[{var=myComputation[…]}, var/;True]`?
Sorry, I should not have ignored that. Those questions are already addressed in various posts, including: (18), (5059), (16485), (24988)