12.6.1 Top new questions this week

12.6.1.1 A possible bug about RegionEqual?
12.6.1.2 ParametricPlot: highlight independent parameter along curve
12.6.1.3 Generating integer compositions with some zeros allowed
12.6.1.4 How can I find the center-point of a circle given three 3D points on its boundary, without dealing with huge expressions?
12.6.1.5 How do I improve simplification in Wolfram Engine for expressions with poles and cancellable square roots?
12.6.1.6 How to smooth data/plot
12.6.1.7 Surface Gravity Kerr-Newman Black Hole
12.6.1.1 A possible bug about RegionEqual?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=318645

An extremely simple example. I think it must be a bug. 
... 
[bugs] [regions]
 
asked by herbertfederer https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=74235 Score of 10
answered by user64494 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=7152 Score of 1
12.6.1.2 ParametricPlot: highlight independent parameter along curve

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=318586

By default, ParametricPlot includes tooltips showing x,y values when the mouse is over the curve. Is there a way to show the independent parameter instead of, or in addition to, x and y? 
I tried ... 
[plotting]
 
asked by tad https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=70428 Score of 6
answered by Michael E2 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=4999 Score of 2
12.6.1.3 Generating integer compositions with some zeros allowed

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=318670

Given positive integers $k$ and $n$, I would like to generate a list of all $k$-multicompositions of $n$.  These are integer compositions of $n$ where up to $k$ zeros are allowed between positive ... 
[list-manipulation] [combinatorics] [number-theory]
 
asked by Brian Hopkins https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=5969 Score of 5
answered by Daniel McDonald https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=66824 Score of 3
12.6.1.4 How can I find the center-point of a circle given three 3D points on its boundary, without dealing with huge expressions?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=318600

I've been using Wolfram Engine 14.3 for a personal project, one part of which required finding the center-point of a circle in 3D space when given the coordinate-triples of three points on the circle'... 
[geometry]
 
asked by Lawton https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=92961 Score of 4
answered by azerbajdzan https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=53172 Score of 9
12.6.1.5 How do I improve simplification in Wolfram Engine for expressions with poles and cancellable square roots?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=318581

The responses to my previous question "Are there any tips/tricks to improve simplification..." were very helpful, but as I move forward in the same personal project mentioned in that ... 
[simplifying-expressions] [algebraic-manipulation] [factorization]
 
asked by Lawton https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=92961 Score of 4
answered by azerbajdzan https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=53172 Score of 11
12.6.1.6 How to smooth data/plot

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=318677

I want to produce a 2D plot in Mathematica. The data is shown in the following table: 
... 
[plotting] [smoothing]
 
asked by sap7889 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=99825 Score of 3
answered by cvgmt https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=72111 Score of 4
12.6.1.7 Surface Gravity Kerr-Newman Black Hole

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=318603

I want to compute the surface gravity of a Kerr-Newman black hole. 
I am using the metric 
$$ 
\text{d} s^2 = -\left(1-\dfrac{2Mr-\tilde{Q}^2}{\rho ^2}\right)\text{d} t^2-\dfrac{(2Mr-\tilde{Q}^2)a\sin ^2\... 
[physics] [tensors] [differential-geometry]
 
asked by Jowo https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=94540 Score of 3