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1d
comment NonlinearModelFit indeterminate or not a list of real numbers
You can put in conditions on the parameters to avoid non-real numbers, but you're going to have trouble no matter what you do. You have a Log[A3 x] in there and you are trying to fit to both positive and negative x values. So you are always going to get a complex result at some point.
1d
answered Make a new list by filtering unwanted rows
Nov
17
answered Shells with Mathematica
Nov
13
comment Large Tuples with Negative Integers
You're trying to loop through 22185312344622607535965183080365494317672538611578408721 values? Good luck.
Oct
29
awarded  Nice Question
Oct
29
comment Display trailing zeros in ticks
There are a number of ways to set how a number is displayed: NumberForm, PaddedForm, SetPrecision. You could Map one of these over your ticks: {#, NumberForm[#, {5, 4}]}&/@ ticks.
Oct
29
answered Is there a way to use Table[] without having to calculate my function twice?
Oct
28
awarded  Notable Question
Oct
28
awarded  Nice Question
Oct
28
comment Division by zero is slow
Clever and fast, but I'm going to wonder what the heck it is doing when I come back to read the code a few months later. Comments are for the weak.
Oct
28
comment Division by zero is slow
I like this answer the best. It's a bit wordy, but clear what it is doing. It's fast and flexible (if you want to do more than a simple divide). It's not quite so fast if you want to do a Normal afterwards - about the same speed as the case with no zeroes.
Oct
28
accepted Division by zero is slow
Oct
28
revised Division by zero is slow
added 135 characters in body
Oct
28
awarded  Popular Question
Oct
27
asked Division by zero is slow
Oct
23
comment Why does integration of a radical times HeavisideTheta give a conditional expression?
I get the same as OP on the same version.
Oct
23
revised Ovals of plane curves (and esoteric surfaces in space)
edited body
Oct
23
revised Ovals of plane curves (and esoteric surfaces in space)
Further examples.
Oct
23
answered How do I check to see if two expressions are equal?
Oct
23
comment Ovals of plane curves (and esoteric surfaces in space)
It handles unbounded components. That was the original point - trying to distinguish those. You just can't make rectangles out of them. As for nested ovals, no idea!