4.15.1 Top new questions this week

4.15.1.1 L-System in Mathematica
4.15.1.2 What's purpose of the new function BinarySerialize?
4.15.1.3 Why does SetPrecision not apply to 0?
4.15.1.4 How to use Mathematica to train a network Using out of core classification?
4.15.1.5 Combining pure functions
4.15.1.6 Question about changes in Documentation Center from version 10 to 11
4.15.1.7 How can I install packages distributed as .paclet files?
4.15.1.1 L-System in Mathematica

http://mathematica.stackexchange.com/questions/143214/l-system-in-mathematica

 
Here is some Maple code for drawing an L-System: 
 
with(Fractals:-LSystem) 
cons := ["A" = "draw:1", "+" = "turn:-90", "B" = "turn:90"] 
state, rules := "A", ["A" = "AB+BA+B", "B" = "B+AAB"] 
...
 

- asked by vito (21 votes), answered by Szabolcs (21 votes)

4.15.1.2 What's purpose of the new function BinarySerialize?

http://mathematica.stackexchange.com/questions/141885/whats-purpose-of-the-new-function-binaryserialize

 
11.1 introduced a new function BinarySerialize, but I don't know what it can do better than the traditional method.Its behavior is very similar to Compress,though I cannot find any advantage of it.It  ...
 

- asked by yode (17 votes), answered by Shadowray (14 votes)

4.15.1.3 Why does SetPrecision not apply to 0?

http://mathematica.stackexchange.com/questions/143296/why-does-setprecision-not-apply-to-0

 
Is there a rationale why SetPrecision works on integers except for 0? 
 
SetPrecision[1,5] 
 
 
 
1.0000 
 
 
SetPrecision[0,5] 
 
 
 
0
 

- asked by alancalvitti (11 votes), answered by Shadowray (17 votes)

4.15.1.4 How to use Mathematica to train a network Using out of core classification?

http://mathematica.stackexchange.com/questions/142135/how-to-use-mathematica-to-train-a-network-using-out-of-core-classification

 
I see there is doc about how to train a network Using out of core image classification and this question.But the object is only image. 
 
I want to use a binary file as data,for example,this. 
 
data =  ...
 

- asked by partida (10 votes), answered by xslittlegrass (9 votes)

4.15.1.5 Combining pure functions

http://mathematica.stackexchange.com/questions/142072/combining-pure-functions

 
Is there an easy way to combine pure functions into a single pure function?  For example, say I have 
 
f = #1^2 &; 
g = #1 - 2 &; 
 
 
and I want to define a new pure function h that is the  ...
 

- asked by tparker (10 votes), answered by Kuba (5 votes)

4.15.1.6 Question about changes in Documentation Center from version 10 to 11

http://mathematica.stackexchange.com/questions/143335/question-about-changes-in-documentation-center-from-version-10-to-11

 
The package Exploring Abstract Algebra with Mathematica works fine in Mathematica 10.4. 
 
After installing it in the $UserBaseDirectory it neatly shows up under Add-Ons and Packages in the  ...
 

- asked by nilo de roock (9 votes), answered by Szabolcs (8 votes)

4.15.1.7 How can I install packages distributed as .paclet files?

http://mathematica.stackexchange.com/questions/141887/how-can-i-install-packages-distributed-as-paclet-files

 
I downloaded a Mathematica package. It came as a file with the .paclet extension. How can I install or uninstall it?
 

- asked by Szabolcs (9 votes), answered by Szabolcs (8 votes)