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1d
comment Solution to $y = x^x (1-x)^{(1-x)}$ for $x$
Note that Solve[y == x^x, x] works but Solve[y == (1 - x)^(1 - x), x] does not.
2d
comment system of nonlinear partial differential-algebraic equation
How about this: start with a very simple version of your problem. Once you get that working, make it gradually make it more like the real problem. If you can't get the simpler version working, then it will be easier for people here to help.
May
21
answered How to speed up Colorize
May
19
answered Matrix with infinity on main diagonal
May
18
awarded  Revival
May
13
comment How can I get a manipulated parameter to show up with text next to it?
Try "d=" <> ToString[d[e]] where you now have d[e].
May
10
comment Create a dataset containing a frequency sweep/chirp?
The term in parenthesis is the frequency, in this case, 3t/5+2. At t=0, this is 2. At t=5 this is 5.
May
10
answered Create a dataset containing a frequency sweep/chirp?
May
9
comment How do I draw random points from a region
One thing you could do would be to use the optional fourth argument of FindInstance and find many points all at once. Then use these one by one.
May
8
comment Beginner Question: Assigning an indexed Variable to a given list
If you say p = Total[Q, {2}] then you can easily access the individual values using p[[2]] or p[[3]].
May
8
accepted Interactive graphics without creating a new cell
May
7
asked Interactive graphics without creating a new cell
May
7
comment Is there any fast way to do enumerate iteration and find minimum value using Do and Table loop
It is not a silly question, it is a meaningless question. The two calculations (using a loop and using NMinimize) are not doing the same thing and will give answers of different accuracies. For example, you can make your loops finish very quickly by iterating k and R over {k, 0.1, 4, 0.1}. Now the loops are very quick.
May
7
comment Is there any fast way to do enumerate iteration and find minimum value using Do and Table loop
The Table loop does not actually do the calculation (it returns a table full of symbols -- you can fix this using := in the definition of fw). The Do takes so much time because of the Print statement. Assign to a value inside the loop and remove the Print. But why not use NMinimize? You will likely get an answer that is more accurate than the 0.001-sized grid you are using.
Apr
26
comment StringLength function
This code works fine here. I would suspect the internet connection.
Apr
21
comment Referring to the components of a vector within a sum
@Ben -- I think the point is that it is often better (when programing in Mathematica) to not express formulas in an index-by-index fashion, but rather to use operations on the vectors/lists.
Apr
19
answered Referring to the components of a vector within a sum
Apr
15
revised Combining memoization and SlotSequence
deleted 12 characters in body
Apr
15
answered Combining memoization and SlotSequence
Apr
10
comment Create a Table depending of two variables
Try Flatten and use the second argument,