Reputation
48,736
Next tag badge:
109/100 score
17/20 answers
Badges
9 124 245
Newest
 Nice Answer
Impact
~750k people reached

10h
comment Good way to create a similarity / distance matrix for a large dataset
@AntonAntonov but DistanceMatrix is orders of magnitude faster than Outer for normal matrices.
1d
comment Getting DSolve to return different solutions
Looks like this should be listen with the bugs tag (introduced in 10.0, solved in 10.3?), not closed.
Apr
20
comment Ordering of Eigensystem in symbolic computations
Related or duplicates: 6420, 59172
Apr
20
comment How to determine distance of periodic features in measured dataset
In your question you seemed to suggest that the cross was just an example of something to look for: "there are some periodic features (in this case a cross)". That was what I was referring to when I wrote "defining the feature". I wasn't referring to a characteristic of this feature (such as center or bounding box).
Apr
20
comment rename files randomly
@Wally To be sure: I'm not downvoting this. Note that this site is not about us doing your work, but more about us helping you get around problems and questions you encounter. Some effort from your side is appreciated.
Apr
20
comment How to determine distance of periodic features in measured dataset
@kay Well, at least you need to define what makes up a feature, otherwise this problem seems underdetermined.
Apr
20
comment rename files randomly
@YvesKlett That too, indeed, and IntegerString or ToString.
Apr
20
comment What is the good source to study advanced custom coding in Mathematica
Have a look at where-can-i-find-examples-of-good-mathematica-programming-practice and perhaps what-are-the-most-common-pitfalls-awaiting-new-users
Apr
20
comment rename files randomly
You'd need RenameFile, and a bit of FileNames, FileExtension,FileBaseName, and FileNameSplit. Read the documentation on these functions, play with them, and come back if you encounter problems.
Mar
30
comment Step by step solution for x 2a^2-5ab-ax+2b^2-bx-x^2 = 0
Mathematica doesn't provide step by step solutions. Have a look at wolfram|Alpha instead.
Mar
29
comment Plots of United States states with non-standard labels
As to your second question: I suppose Inset would be a good candidate.
Mar
29
comment How to plot a given function over its domain
The curly braces are not necessary here.
Mar
28
comment How can I compute and plot the 95% confidence bands for a fitted logistic regression model?
@Sektor That's a bit harsh, isn't it? I quite often see partial workarounds as answers. Besides, this answer/comment, with its graphics and code, wouldn't fit in a comment anyway.
Mar
27
comment How to Set the Ratio of Units of the Axes in a 2D Plot?
@H.R. I removed my comments. For 3D: BoxRatios
Mar
27
comment NonlinearModelFit for analytical data is giving errors
It might also be better not to assign data to variables which you are also going to use as formal variables.
Mar
25
comment What is the most efficient way to replace items in a list at periodic intervals?
@march was about to write that...
Mar
23
comment Create a 3D face from the Shroud of Turin
@vito they probably had a better picture than the one you provided.
Mar
22
comment How to evaluate BSplineFunction
No, the knots can not be just any sequence with the right length. It must fulfill specific conditions. Try for instance knots = {0, 0, 0, 0, .5, 1, 1, 1, 1};
Mar
22
comment Strange Error with Initialization within Animate
@User18 It should be noted that SaveDefinitions can be dangerous: 6579644, 31998, 39631.
Mar
20
comment Closed form probability random walk will hit k >=1 times in n steps
Indeed, I don't think my solution is correct, but I think your recursion equation is not correct either. Your c[n,k] is the probability to end up at +k after n steps, not the probability of having visited +k at least once.