9.15.1 Top new questions this week

9.15.1.1 What is a function?
9.15.1.2 Get All Discrete Univariate Distributions with Symbolic Parameters
9.15.1.3 How to find this probability?
9.15.1.4 How to pass values to Python?
9.15.1.5 Shortest Tour Subject to A Condition
9.15.1.6 Is there a better way to find the equation for finding the coordinates of the three vertices of a known triangle and its circumscribed circle?
9.15.1.7 How to identify and select the first name from a string containing a first name and a last name?
9.15.1.1 What is a function?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=284100

Regarding: 
 Map[#[{2, b}] &, {Reverse}] 
 
The above works, but it makes my head spin.  The documentation for  Map  says that the ... 
[functions] [evaluation] [syntax] [core-language]
 
asked by Chris https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=66733 Score of 11
answered by lericr https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=84894 Score of 20
9.15.1.2 Get All Discrete Univariate Distributions with Symbolic Parameters

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=284150

I am trying to get all Discrete Univariate Distributions with symbolic arguments from any place in Wolfram Language system. For example this guide: 
http://reference.wolfram.com/language/guide/... 
[probability-or-statistics] [symbolic] [built-in-symbols] [system] [system-variablesspel]
 
asked by Vitaliy Kaurov https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=13 Score of 7
answered by JimB https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=19758 Score of 4
9.15.1.3 How to find this probability?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=284024

I am solving a problem from 17th Kolmogorov competition. 
Let $X_1,X_2,\dots,X_{50}$ be IID discrete random variables s.t. 
the probability of $X_1=-1$ equals $\frac 1 9$, the probability of  $X_1=- \... 
[probability-or-statistics]
 
asked by user64494 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=7152 Score of 7
answered by JimB https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=19758 Score of 9
9.15.1.4 How to pass values to Python?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=284122

I would like to pass Mathematica variable values to Python. But I found that it was not that trivial. For example, a typical way would be: 
... 
[python] [external-calls]
 
asked by Satoshi Oota https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=30403 Score of 7
answered by Lukas Lang https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=36508 Score of 7
9.15.1.5 Shortest Tour Subject to A Condition

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=284092

Say I have a list of cities 
... 
[equation-solving] [graphs-and-networks]
 
asked by Tomi https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=36939 Score of 6
answered by kglr https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=125 Score of 7
9.15.1.6 Is there a better way to find the equation for finding the coordinates of the three vertices of a known triangle and its circumscribed circle?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=284158

Given the coordinates p1, p2, and p3 of the three vertices of a triangle, find the standard equation for the circumscribed circle of the triangle 
... 
[ssstriangle]
 
asked by csn899 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=68574 Score of 6
answered by kglr https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=125 Score of 6
9.15.1.7 How to identify and select the first name from a string containing a first name and a last name?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=284027

Is it possible to identify and select the first name in a string that is made up of a first name and a last name, e.g.: 
... 
[machine-learning] [entity] [dictionary] [interpreter]
 
asked by Wolfgang123 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=29761 Score of 6
answered by IntroductionToProbabilityhttps://mathematica.stackexchange.com/landing/r/digest?cta=user&id=60568 Score of 4