7.24 July 22, 2014
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Top new questions this week:
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[DeleteDuplicatesBy is not performing as I'd hoped. Am I missing
something?]\url{http://mathematica.stackexchange.com/questions/55294/delete
duplicatesby-is-not-performing-as-id-hoped-am-i-missing-something}
Deja vu: a new-in-v10 function should provide a better solution to an
old problem, but my enthusiasm is curbed when I run timings. This time
the function is DeleteDuplicatesBy and while its ...
- asked by Mr.Wizard (18 votes), answered by Jacob Akkerboom (23 votes)
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[Mathematica 10 Notebook Fonts Look
Bad]\url{http://mathematica.stackexchange.com/questions/55071/mathematica-1
0-notebook-fonts-look-bad}
I've upgraded my home installation of Mathematica from version 9 to 10
today on a Windows 8.1 machine, and I'm getting a weird font issue - the
fonts are not anti-aliased, and look unbalanced and ...
- asked by Gleno (17 votes), answered by Tetsuo Ichii (17 votes)
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[Mathematica 10 funny bug / Easter
egg?]\url{http://mathematica.stackexchange.com/questions/55081/mathematica-
10-funny-bug-easter-egg}
I have no idea what is happening here.
I'm using Mathematica 10.
I mistyped "FriendNetwork" as "FriendsNetwork" and got a weird result:
The option "FriendsNetwork" is not even listed in the help ...
- asked by Space monkey (17 votes), answered by Pickett (20 votes)
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[Why does ImportString["1c", "Table"] eat the letter
c?]\url{http://mathematica.stackexchange.com/questions/55245/why-does-impor
tstring1c-table-eat-the-letter-c}
I have some whitespace-separated matrix data that I read with
Import[..., "Table"]. The data contained mixed strings and numbers (the
strings are for row and column names).
I noticed this weird ...
- asked by Szabolcs (14 votes), answered by Szabolcs (16 votes)
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[HoldForm doesn't hold
form]\url{http://mathematica.stackexchange.com/questions/55506/holdform-doe
snt-hold-form}
In Mathematica version 10, HoldForm no longer produces the same results
as in version 8 (edit: I only have versions 10 and 8 installed, so can't
compare to version 9 directly). Here are some examples ...
- asked by Jens (12 votes), answered by Simon Woods (4 votes)
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[Why does WRI not provide symbolic solution(s) to Heat
equation?]\url{http://mathematica.stackexchange.com/questions/55546/why-doe
s-wri-not-provide-symbolic-solutions-to-heat-equation}
Why does WRI not provide symbolic solution(s) to Heat equation?
or more generally, Green functions to known PDEs
I am interested in variations of the heat equation:
I understand that Mathematica ...
- asked by chris (12 votes)
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[BarLegend changes in Version
10]\url{http://mathematica.stackexchange.com/questions/55150/barlegend-chan
ges-in-version-10}
Apparently, BarLegend in version 10 displays tick legends in scientific
notation when they are smaller in magnitude than 0.01. For instance,
BarLegend[{"Rainbow", {-.015, .015}},
LabelStyle -> ...
- asked by bbgodfrey (11 votes), answered by kguler (8 votes)
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Greatest hits from previous weeks:
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[When running Mathematica from a Linux terminal, how can I prevent a
script from terminating upon
logout?]\url{http://mathematica.stackexchange.com/questions/42838/when-runn
ing-mathematica-from-a-linux-terminal-how-can-i-prevent-a-script-from}
I am running Mathematica on a remote Linux cluster, by the terminal,
using the math command. (I do not have access to a terminal GUI. For
example, when I type the command mathematica, I get this ...
- asked by Andrew (11 votes), answered by shrx (2 votes)
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[Even Fibonacci
numbers]\url{http://mathematica.stackexchange.com/questions/37266/even-fibo
nacci-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 Tangshutao (22 votes), answered by rcollyer (29 votes)
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Can you answer these?
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[LibraryLink: is WolframLibraryData libData
persistent?]\url{http://mathematica.stackexchange.com/questions/54962/libra
rylink-is-wolframlibrarydata-libdata-persistent}
I am writing some C++ code that I want to call both through LibraryLink
and independently from Mathematica. Thus it must be compatible with
LibraryLink but not depend on it.
When calling it from ...
- asked by Szabolcs (3 votes)
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[Issuing user-defined messages takes a long time (Message is
slow)]\url{http://mathematica.stackexchange.com/questions/55069/issuing-use
r-defined-messages-takes-a-long-time-message-is-slow}
Issuing messages takes a very long time in version 9 and version 10.
Can others reproduce this? Is there a fix?
Update: This is slow only when using the front end, but not when
running the kernel ...
- asked by Szabolcs (6 votes)
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[Report: IgnoringInactive: a
bug?]\url{http://mathematica.stackexchange.com/questions/55462/report-ignor
inginactive-a-bug}
Just to report.
IgnoringInactiveshould work with Cases. In agreement with the things
written at the Documentation Center this:
Cases[{Cos[a], Inactive[Cos][b]}, IgnoringInactive[Cos[x_]]]
works ...
- asked by Alexei Boulbitch (9 votes)