7.8.2 Greatest hits from previous weeks

7.8.2.1 $\LaTeX$ and Mathematica
7.8.2.2 What's the most difficult multidimensional integral that Mathematica has solved?
7.8.2.3 xkcd-style Plots
7.8.2.4 Finding Limits in several variables
7.8.2.5 How to use Mathematica functions in Python programs?
7.8.2.6 Plot data from txt file?
7.8.2.7 How to find integer solutions?
7.8.2.1 $\LaTeX$ and Mathematica

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=736

I quite often would like to draw graphics in my $\LaTeX$ documents using Mathematica. I have encountered three problems. I would like to know if there are any workarounds to these problems 
 
I would ... 
[graphics] [export] [latex]
 
asked by Thomas Rot https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=227 127 votes
answered by Simon https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=34 46 votes
7.8.2.2 What's the most difficult multidimensional integral that Mathematica has solved?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=222184

I am interested in benchmarking numerical integration methods and am trying to develop a wider set of difficult multivariate examples. For my particular methods, I only want to look at non-negative-... 
[calculus-and-analysis] [numerical-integration]
 
asked by ben18785 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=19278 6 votes
7.8.2.3 xkcd-style Plots

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=11350

I received an email to which I wanted to respond with a xkcd-style graph, but I couldn't manage it. Everything I drew looked perfect, and I don't have enough command over ... 
[plotting] [generative-art]
 
asked by Amatya https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=2039 620 votes
answered by Simon Woods https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=862 481 votes
7.8.2.4 Finding Limits in several variables

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=21544

Is there a way to find a limit of a multivariable function, like 
 
$$\lim_{(x,y)\to (0,0)} f(x,y)$$ 
with Mathematica? 
 
When $f$ is continuous, we can use 
$$\lim_{(x,y)\to (0,0)} f(x,y)=\lim_{(x,0)\... 
[functions] [calculus-and-analysis]
 
asked by Dominic Michaelis https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=5899 31 votes
answered by whuber https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=91 42 votes
7.8.2.5 How to use Mathematica functions in Python programs?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=4643

I'd like to know how can I call Mathematica functions from Python. 
 
I appreciate a example, for example, using the Mathematica function Prime. 
 
I had search about MathLink but how to use it in Python ... 
[programming] [mathlink-or-wstp] [interoperability] [python]
 
asked by GarouDan https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=1058 69 votes
answered by GarouDan https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=1058 28 votes
7.8.2.6 Plot data from txt file?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=5910

I have data in file.txt which can be expressed by 20000x11 matrix. I do not want to import all of these data. How can I plot graph of the column 1 & column 4? 
[plotting] [import]
 
asked by Gokce https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=1297 21 votes
answered by user1066 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=106 24 votes
7.8.2.7 How to find integer solutions?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=42359

Following is the equation: 
Need to solve for integer values of x,y when a,b lies between -1000 and 1000. 
Problem is to find the number of integer values of pair (x,y) that satisfy it. 
[equation-solving]
 
asked by Sahil Sareen https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=12396 2 votes
answered by bill s https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=1783 4 votes