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Aug
8
comment Dealing with square roots
Welcome to Mathematica.SE. Please include your expression as Mathematica code for easy handling by those who wish to answer.
Aug
8
comment Replace a value in a nested array
@seismatica It sounds like I have a disciple in the School of Terse! :D
Aug
8
comment Replace a value in a nested array
@seismatica Very nice. Consider using Replace with a levelspec of {1} for optimum performance. In writing the answer above I was thinking about a function that could be mapped but freed from that I prefer your approach. :-)
Aug
8
revised Why is this Mandelbrot set's implementation infeasible: takes a massive amount of time to do?
edited tags
Aug
8
comment Replace a value in a nested array
I voted for this because it is clean, and I like that, but the reason I chose Do is that using Map (or MapIndexed) builds an output expression which pretty much defeats any use of in-place modification. IMHO either use Scan or Do for a mutable style or choose an immutable style and use Map etc.
Aug
8
comment Matrix manipulation
Closely related: (20228)
Aug
8
comment Matrix manipulation
@seismatica Have a look at this: (20228) -- Pickett: +1 on a clean answer. :-)
Aug
8
comment $SU(4)$ Structure constants in mathematica
-1 because you never explain what "SU(4)" means. It may be due to my own ignorance that I don't know this but you should still not make people dig for information to merely understand your question.
Aug
8
comment How to define a variable updating function?
See specifically: (18393)
Aug
8
comment Plot “OilReserves” using CountryData from 1985 until 2014
CountryData["UnitedArabEmirates", {"OilReserves", 1995}] returns "CountryData::notprop: {"OilReserves", 1995} is not a known property for CountryData. Use CountryData["Properties"] for a list of properties. >>" yet CountryData["UnitedArabEmirates", {"OilReserves"}] returns {Quantity[9.78*10^10, "Barrels"]}. This suggests that "OilReserves" is not an historic datum. However I may be attempting to request the data incorrectly.
Aug
8
revised Replace a value in a nested array
deleted 31 characters in body
Aug
8
answered Replace a value in a nested array
Aug
8
reviewed Close Series not evaluating to numerical answer
Aug
8
reviewed Close Use Runga-Kutta method to solve a system of many ODEs
Aug
8
answered How do you convert a string containing a number in C scientific notation to a Mathematica number?
Aug
8
comment Join two datasets on keys
I tried to answer this but my ignorance of SQL impedes me. Could you give another example or two of the operation you want?
Aug
8
answered Join two datasets on keys
Aug
8
comment Why is Mathematica 10 giving me the junk data from Instagram?
When using examples from the documentation please include a link, or if that is not possible at least reference the page by name. I did this for you here.
Aug
8
revised Why is Mathematica 10 giving me the junk data from Instagram?
added 141 characters in body
Aug
8
comment How to sort my list?
@belisarius LOL -- touche. I always take examples and merely that, assuming application to other, larger problems, but if the OP really only wants this for working with country names any of these methods will do fine.