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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


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


55m
comment Command to take the first elements of a list that match a pattern
He is pointing out the fact that you cannot simply concatenate numbers while preserving their individual identity. If you were to concatenate {1, 1, 111, 1111, 11111, 2, 3} you would get a result of fourteen when the actual result should be one.
57m
comment Command to take the first elements of a list that match a pattern
Please see the addendum to my question. I believe that your method would be just as fast as mine (if not faster) if the pattern engine worked properly but sadly it does not.
58m
revised Command to take the first elements of a list that match a pattern
added 1632 characters in body
1h
comment Command to take the first elements of a list that match a pattern
Michael, I see that you added timings to your post. In your example your method is faster but on other simple tests I found it to be extremely slow. For example with SeedRandom[0]; list = RandomInteger[1, 5*^4]; Replace takes 8.9 seconds where LengthWhile takes 0.000136 seconds. I need to explore this further but I believe it is another exhibit of the poorly optimized nature of patterns in Mathematica.
1h
comment Optimization in MMA for time resolved spectroscopy
@DumpsterDoofus The community anxiously awaits your answer to DumpsterDoofus's captivating generative art. Please, if you have the time. (I posted this because I wanted to reward your work on it.)
10h
revised Computing a map between two lists
added 122 characters in body
12h
comment How to automatically Import, Name and Export multiple images?
I think this is a better duplicate than the ones linked: (1122)
12h
reviewed Close How to automatically Import, Name and Export multiple images?
12h
answered Computing a map between two lists
14h
comment Put/Get don't accept a string-valued expression as filename
Also, did you read my answer? Therein I explain why this behaves as it does.
14h
comment Put/Get don't accept a string-valued expression as filename
What version are you using and what is the output of Attributes[{Get, Put}]? On my machine it is {{Protected}, {Protected}}. That means these do not have Hold attributes and therefore filename will be evaluated. What exactly did you try?
14h
comment Trying to get plots to work AGAIN
@Verbeia Congratulations on becoming a Trusted User! Although that title is pretty funny for a ♦. :^)
14h
comment Put/Get don't accept a string-valued expression as filename
I have answered this question previously so I am marking this one as already has an answer. Please see the link inserted at the top of your post. In short use Put rather than >> and Get rather than <<.
14h
revised Grid lines extending too far
deleted 1 character in body
14h
comment Grid lines extending too far
@JunhoLee Thank you. I also voted for your answer.
14h
comment Grid lines extending too far
For version 8 change Range[3] to Range[0, 3]. :-)
15h
answered Grid lines extending too far
1d
comment Problem in Plot at start
Related: (6894) and many others.
1d
comment How to solve ArcSinh equation for many differents parameters?
Bored, Michael? :-O
1d
comment How do I display the parameter value in animate, similar to how it's done in manipulate?
Yes it does. That is apparently a Cloud limitation.