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Oct
13
revised Best way to find permutation with specific total
added 253 characters in body
Oct
13
answered Best way to find permutation with specific total
Oct
13
comment Best way to find permutation with specific total
+1 But your approach is very straightforward.
Oct
13
comment Best way to find permutation with specific total
I believe you still have to find all the permutations of each of the partitions. (Permutations/@)
Oct
11
comment How to figure out the seed I used to generate several random numbers given that I didn't used SeedRandom at first place?
SeedRandom[n] does not use the time. SeedRandom[] uses system clock plus some unspecified system attributes. From what I understand, you did not use SeedRandom, so we cannot know what state the pseudo-random generator was in.
Oct
11
revised How to figure out the seed I used to generate several random numbers given that I didn't used SeedRandom at first place?
examples
Oct
11
answered How to figure out the seed I used to generate several random numbers given that I didn't used SeedRandom at first place?
Oct
2
comment Multiple animation in Mathematica
+1 For the interesting use of RotationMatrix.
Oct
2
comment finding eigenvectors of a n*n symbolic matrix
You may be right. I didn't realize that this was a subtle problem. Thought it was a simple, direct issue.
Oct
2
reviewed Close How to use “Compile” function when argument is array of size 500?
Oct
2
comment Outputting numbers symbolically
To output Table[2^n, {n, 1, 5}] simply type "Table[2^n, {n, 1, 5}]" and hit <shift>+<return>
Oct
2
reviewed Close finding eigenvectors of a n*n symbolic matrix
Sep
30
awarded  Explainer
Sep
17
awarded  Notable Question
Sep
16
awarded  Custodian
Sep
16
reviewed Close Finding exponential model from data
Sep
6
comment How do I draw a triangle given the lengths of the sides?
Yes, that makes things so much easier. There are other triangle options too. E.g. SASTriangle
Sep
5
comment Find intersecting rectangles groups
In v. 10 (which I do not have), it seems that RegionQ[RegionIntersection[rect1,rect2]] will be true if rect1 intersects with rect2.
Aug
30
comment Mapping points on the unit circle
Do the circle and square have the same center? (e.g. {0,0})?
Aug
30
comment Mapping points on the unit circle
Assuming that a map is a function, by what criterion should the mapping be done? Closest (highlighted) point on the unit circle?