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bio website github.com/sw1sh
location Moscow, Russia
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visits member for 2 years, 2 months
seen Nov 29 at 20:32

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You Should Do The Matasano Crypto Challenges. I did and they are awesome.


Aug
27
comment Operator and VariationalMethods
You should use an expression for first argument of VariationalD not a function. So just replace g with last expression %.
Apr
12
comment Creating centered inline cell in text cell
Maybe there is, I just tried to do this and didn't find anything.
Apr
12
comment Creating centered inline cell in text cell
Are you sure it was created in the front end? Maybe it was imported from TeX, MathML or something. Or it was modified manually, adding GridBoxItemSize option there.
Apr
11
comment Symbolic scalar-by-matrix derivative
Until there is no actual tensor inside Tr it's just a symbolic expression, is up to you how to interpret it.
Apr
11
comment Symbolic scalar-by-matrix derivative
@cryo111 Wouldn't a matrix derivative of a matrix be a fourth rank tensor? Therefore its trace should be a matrix, not a scalar.
Apr
5
comment Fit two intersecting straight lines in Mathematica
I would estimate an error from the distance between closest to k data points .
Feb
13
comment Defining my own invisible operator
@Öskå Yes, basically I need an invisible infix operator of my choice.
Jan
4
comment Different integral when used with assumptions
I would say it's a bug that there is not every conditional in the first result. But the results are the same if you assume this condition.
Oct
17
comment Too much whitespace in a GraphicsGrid containing Legended Plots
Adjust AspectRatio parameter inside your Plot function. For example AspectRatio -> 1. Maybe move your legend down.
Sep
21
comment Extracting variables from Hold expression
It works perfectly! Thank you!
Jun
8
comment How do I extract the middle element(s) of a given list?
@Mr.Wizard I already anticipate the answer with time comparisons of all solutions to be made ;)
May
27
comment Row Alignment in Grid
Quick fix would be changing spacing for second column to 1.75.
May
26
comment How to define a pure function with a Module?
Classic mistake fpiecewise[x_?NumberQ, ...
May
25
comment rule-based implementation of an algorithm
Probably you need ReplacePart and FixedPoint.
May
10
comment How can I create a 3D FilledCurve object?
@Silvia I don't have any errors.
May
10
comment How can I make a Plot over a discrete set of domain points?
No problem. You can start from here and here.
May
10
comment How can I make a Plot over a discrete set of domain points?
ListPlot. To connect the dots: Joined->True or ListLinePlot.
May
8
comment How to compare power towers in Mathematica?
I hate that expressions like 4^4^3^3^3 totally freeze my computer instead of just telling me to stop trying evaluating this and quietly abort :(.
May
8
comment How to compare power towers in Mathematica?
That's pretty impressive! I would like to see an example when this will fail, if it exists of course :).
May
5
comment Error invoking Information on functions containing Legended
@Silvia The problem appears again if I evaluate plot somewhere else. And then even f[x_]:=Legended[1,x] produces this error.