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Jul
22
comment How can I tell why Mathematica returns no solution to this system of nonlinear equations?
You need to clear your values for b, c and s.
Jul
22
comment How can I tell why Mathematica returns no solution to this system of nonlinear equations?
If you throw Eliminate at your equations, it says that s has to be 1/2.
Jul
17
comment How to speed up an optimization with very long symbolic expressions?
A 600 MB file is a little ridiculous. You could 7zip that down to 8 MB. I'd also recommend losing the Greek letters to save space.
Jun
25
comment Recurrence relation for multivariate polynomials
Maybe I am missing something, but do you just want $x_1^\text{# of 0s} x_2^\text{# of 1s}$?
Jun
23
comment Problem with “Lighting” in Mathematica V9
You can use RasterSize -> 2000 as an option in Rasterize. But it still doesn't look that flash. Jens' solution looks better.
Jun
16
comment How to draw a protractor in Mathematica
May I suggest using a relative font size? Instead of something like Style[#, Larger], I like to use Style[#, FontSize->Scaled[0.02]. It makes it easier when resizing and exporting graphics.
Jun
2
comment Interactive Mandelbrot Zoomer?
There is also this.
May
29
comment Why does the degree symbol disrupt this FrameLabel?
The "C" is where you would expect it on mine (windows v9.0.1).
May
29
comment Why does the degree symbol disrupt this FrameLabel?
It works fine for me, but you could try an ImagePadding option in the Plot. Given that you don't have a Frame -> True are you sure this is exactly what you are doing?
May
18
comment Is it possible to solve a certain set of nonlinear equations in Mathematica?
I am not convinced that's an actual solution, it's just pretty close to zero given your numerical accuracy.
May
6
comment FullSimplify wrongly reduces expression to zero
Same result on windows 9.0.1. Also Table[FullSimplify[Exp[-k (i - 0.5)^2]], {k, 73, 74, 0.01}] gives fun results.
Apr
24
comment What is wrong with this simple FindRoot?
Because you spelled Evaluate wrong?
Apr
23
comment Formatting an equation: X^Y to pow(X,Y)
There is always good ol' CForm.
Mar
16
comment Quantum Physics question
It looks like the factor involving θ is a function that has equal positive and negatives bits, so it all integrates to zero. For example, h[0, 0, 1, 0] has a Cos[θ] Sin[θ] factor. Changing the range to {θ, 0, π/2} gives something more interesting, but I have no idea if that is a sensible thing to do for the problem.
Mar
11
comment Weird results of calculating a sum of binomials?
Put a GenerateConditions -> True in your sum and it will tell you when the answer is valid.
Mar
11
comment Generating Z^*_n
How about a Select over a simple range?
Feb
22
comment Built in function to convert list of numbers into list of binary numbers
There's BaseForm and IntegerDigits.
Feb
18
comment Error with using SortBy in a Map
You have an ampersand in the wrong place. You need SortBy[# , #[[2]] &]&
Feb
11
comment Adjusting contrast of a color scale with ListDensityPlot
Have you tried different colour schemes? Maybe "Rainbow" or "BrightBands". Have you tried a gamma correction instead of a log? Have you tried a ListContourPlot and specify the contours you want?
Feb
11
comment Nested mapping of a function
They are not the same if you define something for f. Try it with, say, f = #+1&.