Reputation
31,591
Next tag badge:
99/100 score
35/20 answers
Badges
1 42 106
Newest
 Enlightened
Impact
~319k people reached

Jun
18
comment Plotting a 2D mapping of a 2 column ASCII
@Guesswhoitis. wow! thanks, I did not know this. I'll update.
Jun
18
answered Plotting a 2D mapping of a 2 column ASCII
Jun
18
comment Plotting a 2D mapping of a 2 column ASCII
Yes, I needed to do [[All, 2]] first, forgot about the first element is not part of data.
Jun
18
comment Plotting a 2D mapping of a 2 column ASCII
Is this what you mean? Image[Partition[pix, 5], ImageSize -> 400] where pix is the data you show. !Mathematica graphics
Jun
10
comment Mathematica keeps crashing my machine — is there a way to prevent Mma from eating up so much system resources so this doesn't happen?
see TimeConstrained and MemoryConstrained and adding $HistoryLength = 0; at the top helps also. Other than that, maybe your PC has virus if it keeps crashing like this? I recommend ESET virus protection for PC's. I've been using it for years.
Jun
10
answered How to change size of slider in Manipulate?
Jun
10
comment How to extract notes and chords from audio?
fyi, to use Wavelet, something like : cwt = ContinuousWaveletTransform[sound, GaborWavelet[6], Padding -> 0.0, SampleRate -> 44100, WaveletScale -> Automatic]; where the SampleRate is obtained from the file. As well as the Sound (imported, using Elements). I just do not know enough about Wavelets to answer your question on sound. Here is screen shot !Mathematica graphics
Jun
9
comment How to extract notes and chords from audio?
I got the spectrum for this, But used fft. Why do you have to use WaveletTransform for this? Screen shot !Mathematica graphics
Jun
9
answered Why empty plot (Dsolve solution)?
Jun
9
answered Stopping plot from shaking
Jun
8
comment How much time should one give Mathematica for an integral evaluation?
this page has CPU time of problems used, for V 10.1. No time out is used in this one.
Jun
7
answered Plotting entries of one table vs entries of another with a condition on a third table
Jun
6
revised How to replace element of list by index
added 590 characters in body
Jun
6
answered How to replace element of list by index
Jun
4
comment Preventing Power from evaluating principal value
"Exactly, E^(2 I Pi) is evaluated to 1", yes, Mathematica knows this is 1, so the evaluator automatically simplifies it. To prevent this, you can do Sqrt[Exp[x I Pi]] and now it does not simplify it. Later on, you can replace x with 2 using expression /.x->2, but you will still get 1.
Jun
3
comment Preventing Power from evaluating principal value
"refers to the ambiguity of the sqrt procedure." there is no ambiguity of the sqrt. In you case, E^(2 I Pi) is first evaluated to 1 first, then the Sqrt[1] gives 1. Please read the comments in the above answers.
Jun
3
comment Preventing Power from evaluating principal value
Duplicate of sqrt-how-to-get-negative-branch for example, using answer there, try : sqrt[E^(2 I Pi)] which gives {1,-1}
Jun
3
comment Compiling a summation
Do not use UpperCase for symbols and variables. N especially is used by Mathematica. ?N for more information
Jun
3
answered animation of a straightline according to given constraints
Jun
3
comment Animating a parametric plot
please do not use first UpperCase for variables, symbols and function names. If you must use single UpperCase letter, add a number to it. Say R0 and D0 and such.