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Jun
17
revised Plotting implicitly-defined space curves
added 7 characters in body
Jun
17
revised Finding when a ODE returns to starting position
deleted 215 characters in body
Jun
17
comment Speed and the MapThread function
@Pickett. Yes. "MapCompileLength" -> 100. Not only that, but Map[# + RandomInteger[] &, t] produces a packed array and runs much quicker than MapThread[# + RandomInteger[] &, {t}] which does not. In this case, the Map is being compiled.
Jun
16
comment Speed and the MapThread function
@Pickett. From the compiled function `f`` I get timings comparable to what he got. The returned array is packed.
Jun
16
comment Speed and the MapThread function
In V10.1 on OS X, I'm getting the same time, ~3.7 sec, with both Map and MapThread. Can anyone confirm this? PackArrayQ returns False for both a and b.
Jun
16
revised Speed and the MapThread function
deleted 31 characters in body
Jun
16
comment Speed up image coloring with ReplaceImageValue
If you are just trying to break the image up in three separate equal-sized rectangles separated by white strips, take a look at ImagePartition
Jun
16
comment Defining a function with a subscripted head
However, f[a_][x_] := (* other stuff *) will turn out to be more tractable for serious computation.
Jun
16
revised Defining a function with a subscripted head
added 6 characters in body; edited tags; edited title
Jun
16
reviewed Leave Closed Algorithms behind implemented Mathematica functions
Jun
16
comment Start counting pages from 3rd page
The only thing I can think of is to put your first two pages in a separate notebook and print that separately with no page numbers.
Jun
16
comment Draw a number of rectangles from list of coordinates
@Gaston. Don't feel bad, making errors like this one is part of the learning process. I been using Mathematica for 18 years and I still make similar mistakes sometimes. What experience brings is the ability to recognize such mistakes quickly.
Jun
16
revised How to show and hide text by a button
added 1 character in body
Jun
16
answered How to show and hide text by a button
Jun
15
revised How do I store Eigenvalues of a 14*14 matrix in a For loop into an array and then plot that array?
added 5 characters in body; edited title
Jun
15
reviewed Approve Substituting ParametricNDSolve for NDSolve
Jun
15
revised Finding when a ODE returns to starting position
deleted 264 characters in body
Jun
15
reviewed No Action Needed Finding when a ODE returns to starting position
Jun
15
revised Draw a number of rectangles from list of coordinates
deleted 1 character in body
Jun
15
revised Draw a number of rectangles from list of coordinates
added 43 characters in body