7.25 July 15, 2014
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Top new questions this week:
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[How to make use of
Associations?]\url{http://mathematica.stackexchange.com/questions/52393/how
-to-make-use-of-associations}
I have been curious about it for long. Now that Mathematica 10 arrives,
I think it's time to ask the question: How the new Association data
structure would be used to improve Mathematica programming?
...
- asked by Yi Wang (38 votes), answered by Leonid Shifrin (36 votes)
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[PositionIndex is horribly
slow]\url{http://mathematica.stackexchange.com/questions/54853/positioninde
x-is-horribly-slow}
I do not know how best to formulate this as a question but the new
PositionIndex is horribly slow.
Using Szabolcs's clever GatherBy inversion we can implement our own
function for comparison:
...
- asked by Mr.Wizard (25 votes), answered by Taliesin Beynon (15 votes)
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[Is it possible to define new
PlotTheme?]\url{http://mathematica.stackexchange.com/questions/54545/is-it-
possible-to-define-new-plottheme}
In version 10 one can define, say,
$PlotTheme = "Scientific"
Which changes the appearance of all plots. This is fantastic because on
the one hand, I can have nice plots very easily and globally ...
- asked by Yi Wang (19 votes), answered by Mr.Wizard (12 votes)
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[What information is sent to Wolfram Research when loading or working
with
Mathematica?]\url{http://mathematica.stackexchange.com/questions/54921/what
-information-is-sent-to-wolfram-research-when-loading-or-working-with-ma
them}
Recently I am told that information unknown to the user is sent to
Wolfram Servers. Is there any truth behind it ? I was told that more
than just an IP address of the user is sent to them and that ...
- asked by nathan (18 votes)
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[How to disable the small pop-up windows when mouse is over a
Mathematica command in
V10?]\url{http://mathematica.stackexchange.com/questions/52406/how-to-disab
le-the-small-pop-up-windows-when-mouse-is-over-a-mathematica-command}
In version 10, when the mouse is over a Mathematica command, a small
pop-up window comes up that one can click on for help on the command.
Is there an option to disable this feature? Screen shot:
...
- asked by Nasser (17 votes), answered by Martin John Hadley (17 votes)
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[What's the difference between Inactive and
HoldForm?]\url{http://mathematica.stackexchange.com/questions/54556/whats-t
he-difference-between-inactive-and-holdform}
In version 10, Mathematica not only added Inactive / Activate but also
highlighted this change in the "New in 10" page (in Core Language
Enhancements). Thus, I suppose it should be something useful. ...
- asked by Yi Wang (14 votes), answered by mfvonh (11 votes)
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[Mma 10: Half the parallel power (Mac
Pro)?]\url{http://mathematica.stackexchange.com/questions/54553/mma-10-half
-the-parallel-power-mac-pro}
Here is a comparison of the parallel kernels launched under Mathematica
under v9 and v10, on the same identical current 2014 R2-D2 Mac Pro ...
Under v9.01
$ProcessorCount
12
Issuing:
...
- asked by wolfies (14 votes), answered by Szabolcs (10 votes)
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Greatest hits from previous weeks:
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[Calling MATLAB from
Mathematica]\url{http://mathematica.stackexchange.com/questions/10231/calli
ng-matlab-from-mathematica}
How can I call MATLAB functions directly from Mathematica and transfer
data/variables between the two systems?
- asked by siva82kb (33 votes), answered by Szabolcs (43 votes)
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[What is the best Mathematica tutorial for young
people?]\url{http://mathematica.stackexchange.com/questions/733/what-is-the
-best-mathematica-tutorial-for-young-people}
As Conrad Wolfram said at the TED conference, in the future kids should
focus more on new technology. Computers compute better than humans, so
we should focus more on thinking and getting the ...
- asked by noisy (33 votes), answered by Vitaliy Kaurov (17 votes)
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Can you answer these?
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[possible bug in Mathematica TeXForm? Generating
\left\left]\url{http://mathematica.stackexchange.com/questions/54857/possib
le-bug-in-mathematica-texform-generating-left-left}
I asked about this in the TeX chat. It seems Mathematica generate
invalid Latex in this example.
ClearAll[y,x];
ode = D[y[x], x] - (y[x]^2 + 1)/(Abs[y[x] + (1 + y[x])^(1/2)]*(1 +
x)^(3/2));
...
- asked by Nasser (2 votes)
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[How to get a uniformly distributed list of points from a B-spline
function]\url{http://mathematica.stackexchange.com/questions/54841/how-to-g
et-a-uniformly-distributed-list-of-points-from-a-b-spline-function}
I created a spline function from a list of points and made a plot as
follows:
list2 = {{3.93453, -0.623168}, {3.79708, -0.187231}, {3.72835,
0.0307369}, {3.65963, 0.248705}, {3.5909, 0.466673}, ...
- asked by Kaisey (1 vote)
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[Autocomplete of non-global
functions]\url{http://mathematica.stackexchange.com/questions/54827/autocom
plete-of-non-global-functions}
In Mathematica 9 and 10 they added autocompletion. Out of the box this
works great, but when I set the CellContext to "Notebook" instead of the
default "Global" (following this) it no longer ...
- asked by Anders (7 votes)