11.26.1 Top new questions this week

11.26.1.1 Why f[x___] :=  x==="To be", x=!="not to be"  is both True for f[]?
11.26.1.2 How to deal with the zombie apocalypse caused by Python ExternalSessions?
11.26.1.3 (discrete) Surface parametrization in Mathematica
11.26.1.4 How to speed up this NIntegrate which is calculated many times?
11.26.1.5 The root neighborhood representation
11.26.1.6 How do I set up a recursive algorithm to repeatedly square root a positive real number?
11.26.1.7 How can I find which messages have been turned off?
11.26.1.1 Why f[x___] :=  x==="To be", x=!="not to be"  is both True for f[]?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=314626

The behavior of pattern matching in functions surprised me at the 
unexpected behavior of this example 
... 
[pattern-matching] [core-language] [expression-test]
 
asked by Somos https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=61616 Score of 8
answered by Michael E2 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=4999 Score of 10
11.26.1.2 How to deal with the zombie apocalypse caused by Python ExternalSessions?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=314658

I am working on a Mathematica package for knot theory that combines functionality of several other packages. Two notable examples are SnapPy and Regina. Fortunately, both have a rich Python interface ... 
[kernel] [python] [external-calls] [mac-os-x]
 
asked by Henrik Schumacher https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=38178 Score of 7
11.26.1.3 (discrete) Surface parametrization in Mathematica

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=314566

In Python there are very easy to use and efficient libraries for surface parametrization (for instance igl). I wonder if in Mathematica we have a ready-made implementation. 
The parametrization is ... 
[graphics] [computational-geometry] [python] [differential-geometry]
 
asked by Daniel Castro https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=69211 Score of 6
answered by azerbajdzan https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=53172 Score of 6
11.26.1.4 How to speed up this NIntegrate which is calculated many times?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=314591

Is there a trick to speed up the following calculations? 
... 
[numerical-integration] [performance-tuning] [compile]
 
asked by Grzegorz Kruk https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=110624 Score of 6
answered by Henrik Schumacher https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=38178 Score of 11
11.26.1.5 The root neighborhood representation

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=314629

I am trying to understand the content in the documentation for  Root . 
 
The root neighborhood representation  Root[{f,c}]  specifies ... 
[equation-solving] [precision-and-accuracy]
 
asked by Soon https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=78050 Score of 3
answered by azerbajdzan https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=53172 Score of 3
11.26.1.6 How do I set up a recursive algorithm to repeatedly square root a positive real number?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=314559

From real analysis, I was asked the following question: 
 
What happens when you hit the square root key repeatedly on a calculator for any initial positive number $x$? Formulate this question in terms ... 
[numerics] [recursion] [homework] [sequence] [convergence]
 
asked by user475550 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=111351 Score of 3
answered by Nasser https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=70 Score of 8
11.26.1.7 How can I find which messages have been turned off?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=314657

After using  Off[message]  to disable a message, how can I find those messages for which that has been changed, globally. 
I would prefer not to have to intercept this ... 
[warning-messages] [message-coding]
 
asked by Tapiocaweasel https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=93168 Score of 2
answered by Michael E2 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=4999 Score of 3