================================== Top new questions this week: ==================================
[Where is the old option TraceInternal->True?] http://mathematica.stackexchange.com/questions/67305/where-is-the-old-option-traceinternal-true
Already at least in version 2 (I think), the function Solve calls the function Roots. At that time, I had a rather dirty trick, that still works, to verify this:
Unprotect[Roots]; Roots[x___] /; ...
- asked by Fred Simons (14 votes), answered by WReach (13 votes)
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[What are the purposes of functions in FrontEnd‘ context which are duplicates of those in System‘?] http://mathematica.stackexchange.com/questions/67179/what-are-the-purposes-of-functions-in-frontend-context-which-are-duplicates-of
I noticed that for notebook-related heads, there are usually a pair of same functions, one in System context, another in FrontEnd context. I filtered out a list of functions of this kind:
candidates ...
- asked by Naitree (9 votes), answered by Naitree (6 votes)
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[Modify existing color scheme] http://mathematica.stackexchange.com/questions/67212/modify-existing-color-scheme
I am using the "TemperatureMap" color scheme for image processing. How can I set the lowest color value to Black?
Generally speaking, is it possible to exchange a specific color (at a certain value ...
- asked by Milenko Rubin-Zuzic (8 votes), answered by rm -rf (13 votes)
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[Get rational and irrational parts] http://mathematica.stackexchange.com/questions/67293/get-rational-and-irrational-parts
Consider an expression of the form \(a + b \sqrt {2}\), where \(a,b \in \mathbb {Q}\). How can I extract \(b\) (or equivalently \(a\)) from this expression?
- asked by Tyson Williams (8 votes), answered by Michael E2 (6 votes)
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[Implementation of Partial Least Squares (PLS)?] http://mathematica.stackexchange.com/questions/67282/implementation-of-partial-least-squares-pls
I’m looking for a PLS implementation for Wolfram Mathematica. I just cant seem to find any implementation for it - do you know one? In general, I’m a bit confused that there exist only so few ...
- asked by tim (6 votes)
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[A short notation to fix the assumption that all involved parameters are, say, positive] http://mathematica.stackexchange.com/questions/67601/a-short-notation-to-fix-the-assumption-that-all-involved-parameters-are-say-po
Often I make simplifications or other operations with assumptions. Sometimes the assumptions simply state that all parameters involved are positive.
I wonder, if there is a short notation for such a ...
- asked by Alexei Boulbitch (5 votes), answered by kguler (2 votes)
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[Why are TimeSeries objects reported with head "TemporalData"?] http://mathematica.stackexchange.com/questions/67597/why-are-timeseries-objects-reported-with-head-temporaldata
I am quite surprised to find that
ts = TimeSeries[ {1,2,3,4}, {{1,2,3,4}}]; Head @ ts returns (* TemporalData *)
I do find this quite inconsistent as the object is also reported with ...
- asked by gwr (5 votes)
================================== Greatest hits from previous weeks: ==================================
[Even Fibonacci numbers] http://mathematica.stackexchange.com/questions/37266/even-fibonacci-numbers
Today, I found the Euler Project. Problem #2 is
Each new term in the Fibonacci sequence is generated by adding the previous two terms. By starting with 1 and 2, the first 10 terms will be:
1, ...
- asked by ShutaoTang (24 votes), answered by rcollyer (31 votes)
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[Implementing efficient multiple undo] http://mathematica.stackexchange.com/questions/1953/implementing-efficient-multiple-undo
At the time this question was asked, version 10 was not out yet. The Front End of Mathematica 10 does have multiple undo, see the answer by John Fultz.
The Mathematica Front End’s built-in Undo ...
- asked by Rojo (112 votes), answered by John Fultz (38 votes)
================================== Can you answer these? ==================================
[The CorrelationMatrix is equal to corrcoef of Matlab?] http://mathematica.stackexchange.com/questions/67348/the-correlationmatrix-is-equal-to-corrcoef-of-matlab
I know that my question imply to know matlab, and this is not the right place, but i’m a physics student and i don’t quite yet understand this concepts. When i make a LinearModelFit i can get a ...
- asked by Kafkarudo (2 votes)
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[How to assemble and disassemble a function into steps] http://mathematica.stackexchange.com/questions/67325/how-to-assemble-and-disassemble-a-function-into-steps
I’ve watched many programmers (both novice and expert) write functions in Mathematica and have observed a common behavioral pattern. This pattern has many elements that would be automated and thus ...
- asked by user5601 (3 votes)
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[Mathematica 10 and Mac] http://mathematica.stackexchange.com/questions/67552/mathematica-10-and-mac
This might be a the wrong place to post the question, but I am sure that there would be few places where I would find people who would know more about how mathematica works.
I am looking to buy a new ...
- asked by ALEXANDER (2 votes)