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May
16
revised Problem with simplifying Sinc function
deleted 26 characters in body
May
16
comment The Orbit and Perigee of the Flamsteed comet
"I'm not interested in copying the day of the perigee from any Internet sites" - I gathered that, but thanks for being explicit anyway. :D Well, let me dig up my ephemerides...
May
16
comment How to tell Mathematica to use Real Only Mode
@bel, that or Plot[CubeRoot[x - 1], {x, -3, 3}]. I don't have version 9, but I'm guessing that's how it should now be done.
May
16
revised Plot cubic root which includes the negative graph
added 270 characters in body
May
16
comment How to tell Mathematica to use Real Only Mode
@bel, this might be a good time to use Surd[]/CubeRoot[]...
May
16
comment How can I substitute something using only map?
Nevertheless, the last use of //@ just feels like using a pipe wrench to whack nails...
May
16
revised How can I substitute something using only map?
deleted 14 characters in body
May
16
answered Problem with simplifying Sinc function
May
16
comment How can I substitute something using only map?
Yes, they act quite differently; Map[f, {1, 2}] will apply the function f on the elements of the list {1, 2} to yield {f[1], f[2]}. That wors differently from Replace[{1, 2}, 1 -> 5, {1}] which replaces the 1 in {1, 2} with 5, to yield {5, 2}.
May
16
comment How can I substitute something using only map?
"I think Replace is just a kind of syntactic sugar" - no. No, it's not.
May
16
comment A Symbol with Subscript and Superscript as an Axis Label
"OK, I found the answer." - please write an answer to your own question.
May
16
revised Creating a NearestFunction that returns an index
deleted 71 characters in body
May
16
revised Generating partitions of a set with a specified size of the parts
edited tags
May
15
revised How to select elements from a 4D Array?
added 8 characters in body; edited tags
May
15
comment Plotting points and functions in one graphic
In the same vein as @george's suggestion: you could use Show[] to display the output of Plot[] and ListPlot[] together.
May
15
comment The Orbit and Perigee of the Flamsteed comet
Yeah, that's why I left a comment and not an answer. The missing data in AstronomicalData[] is a sticking point, so if you're excluding the possibility of bringing in external data, then I'm not sure this is doable.
May
15
comment Solving homogeneous Fredholm Equation of the second kind
Hmm, that's big. Your kernel's quite oscillatory too; There is a modification of Clenshaw-Curtis by Piessens and Branders for finite oscillatory integrals, which can be useful if you're taking the discretization route. You might want to look into that.
May
15
comment FourierSeries for rational function looks wrong
Now that's just weird. Here we thought we don't have to add the assumption that the integration variable is within the integration interval... :D
May
15
revised Peirce's quincuncial projection
bonus picture
May
15
comment How to simplify an expression with special functions to zero
I daresay it is baffling that the usual approach of comparing LeafCount[]s doesn't work...