60,142 reputation
791263
bio website
location Oregon, USA
age
visits member for 1 year, 4 months
seen 13 mins ago
stats profile views 4,624

(also known as Spartacus)

Project Euler


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



19m
comment Question regarding function definition overloading / argument passing test
Related: (1), (2)
35m
comment FindRoot runs out of memory in Windows but not on Mac
Is it possible to include the full code you are running? It may make for a difficult problem to approach without it.
37m
comment Precision of a complex number
I embedded your picture but it would be better if you included copyable code in your question.
37m
revised Precision of a complex number
added 20 characters in body
40m
answered How to draw tiles with different height?
1h
comment Weird vertical line when trying to plot a histogram
Try Axes -> False
1h
comment Why is there no PositionFunction in Mathematica?
@Jacob Good point; I should add that, or change to DownValues on a HoldAll function, etc. I only intended this to be a rough start.
2h
awarded  Nice Question
5h
comment create function that behaves like continuedFraction
Suggested reading: (1), (2)
5h
revised create function that behaves like continuedFraction
added 4 characters in body; edited title
5h
answered create function that behaves like continuedFraction
5h
revised Why is there no PositionFunction in Mathematica?
deleted 36 characters in body
5h
comment Tricky selection of elements based on their position
I like this. +1
5h
comment Why is there no PositionFunction in Mathematica?
@RodLm Yes, I think Position is commonly used by many people, and many of its applications are good. I don't mean to imply that Position itself is slow, only a certain use where it is used repetitively. I want to make sure that is clear.
5h
comment Why is there no PositionFunction in Mathematica?
@RodLm -- Thanks! You're getting ahead of the issue as I hope this questions helps establish whether such a function is even practical.
5h
comment Why is there no PositionFunction in Mathematica?
@RodLm I'm not sure how to read that; often Position is well used too, and I certainly use it a lot myself (not implying that makes it right). Rather, certain uses of it are quite slow. I hope to bring attention to the issue and perhaps develop a useable general function.
6h
asked Why is there no PositionFunction in Mathematica?
6h
answered Why is there no PositionFunction in Mathematica?
6h
accepted Ordering function with recognition of duplicates
10h
comment extracting the rows of a matrix satisfying a condition (e.g. all elements negative)
@Jacob should have been Pick[..., 0] - I just can't get it right tonight. I'm going to do something else.