Reputation
35,725
Next tag badge:
402/400 score
69/80 answers
Badges
8 94 178
Newest
 Necromancer
Impact
~891k people reached

18h
revised How can I generate and randomly assign color to annular sectors?
deleted 2 characters in body
19h
revised Is there any fast way to solve a quadratic matrix equation in Mathematica approximately?
edited tags; edited tags
19h
revised Does Mathematica have an equivalent of C's nextafter?
edited tags
20h
comment Does Mathematica have an equivalent of C's nextafter?
You're right, for numbers in $(-1, 1)$, adding an appropriate signed machine epsilon would not be applicable. But at least for numbers outside that range, the last one would work.
20h
comment Does Mathematica have an equivalent of C's nextafter?
x + Sign[y] $MachineEpsilon should work, yes?
20h
revised What algorithm does Plot use to determine abscissas?
edited tags
21h
answered Does Mathematica have an equivalent of Python's float.as_integer_ratio?
21h
comment Changing from Dashed to Solid
Within Graphics[], you can use lists to localize the effect of a directive on a primitive. So, Graphics[{Blue, Line[{{0, 0}, {1, 0}}], Line[{{0, 0}, {1, 1}}]}] will render both lines blue, but Graphics[{{Blue, Line[{{0, 0}, {1, 0}}]}, Line[{{0, 0}, {1, 1}}]}] will only have the horizontal line be blue.
22h
revised Gradient in a plotstyle
deleted 16 characters in body; edited tags
22h
comment Gradient in a plotstyle
"extra transparency for the more white parts" - I'm guessing you can use here the two-argument form of GrayLevel[] to have the alpha channel vary along with the gray.
1d
comment Add a portion of a unit circle
Circle[] can take a third argument for producing arcs of circles; you might want to look at that. Also, a/Norm[a] is more compactly done as Normalize[a].
1d
revised Replacement of terms/Pattern matching involving products of derivatives of a function
edited tags
1d
comment Problem in function's arguments recognition by type
As @ciao says, you could do something as simple as LineCoexistence2D[l1_coeff2D, l2_coeff2D] := (* stuff *) and LineCoexistence2D[l1_coord2D, l2_coord2D] := (* stuff *). If you need stricter checking, you can also write helper functions that test if coeff2D and coord2D are in a proper format.
1d
revised Sign of a symbolic derivative for ranges of parameters
edited tags
1d
comment What is the FrontEnd?
As you say, it has gotten blurred, but for the most part I pretend that it's still a simple client-server relationship unless I have to consider that it's actually not (e.g. w/ Dynamic[]).
1d
comment Creating Matrix,Inverted and Upper Triangulate inside Module
Look up Transpose[].
1d
comment No response to an infinite limit
I posted Mathematica routines for Richardson and Wynn here, in case you might be interested.
1d
revised No response to an infinite limit
added 25 characters in body
1d
comment No response to an infinite limit
An alternative to Richardson extrapolation would be to use the Wynn epsilon algorithm. In Mathematica, it's as easy as SequenceLimit[pintn^(1/Range[Length[pintn]])].
1d
comment Why does the order of arguments in Show influence the result?
A related question.