11.27.1 Top new questions this week

11.27.1.1 Calculating and plotting implicit solution with NDSolve

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=314761

I am trying to plot the solutions to a differential equation 
$$ 
y' = \frac{2 x + y + 2}{2x + y - 4}. 
$$ 
My code is 
... 
[plotting] [differential-equations]
 

asked by viehhaus https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=111494 Score of 6

answered by Michael E2 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=4999 Score of 6

11.27.1.2 Linear system of matrices

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=314814

I don't know Mathematica very well, I have an equation involving matrices of the following form: 
given two $5\times5$ matrices $A,B$ where $B$ is nilpotent we want to find a matrix $X$ such that 
... 
[equation-solving] [matrix] [linear-algebra] [symbolic]
 

asked by Vanja https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=111535 Score of 5

answered by I.M. https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=26815 Score of 6

11.27.1.3 Counting free variables in a system of linear equations

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=314812

If we have a system of variables, say, 
... 
[equation-solving] [linear-algebra]
 

asked by youthdoo https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=92866 Score of 5

answered by Henrik Schumacher https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=38178 Score of 4

11.27.1.4 CircularArcThrough[points] does not return a circular arc through points

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=314775

Bug introduced in 14.2 or earlier, fixed in 14.3. 
 
... 
[graphics] [bugs] [geometry]
 

asked by Deniz https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=1518 Score of 5

answered by cvgmt https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=72111 Score of 4

11.27.1.5 How can I add a column to a Tabular that contains the row number?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=314786

If I create a Tabular like this one, how can I use TransformColumns (or other command) to add a column that has the value of the row number i.e.  {1,2,3,4...} 
... 
[tabular]
 

asked by Pat Lane https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=93256 Score of 5

answered by jose https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=10552 Score of 3

11.27.1.6 How can I color a cylinder inside a sphere?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=314722

I am trying to draw a figure and color it like this from here: 
I tried 
 CSGRegion["Difference", {Ball[{0, 0, 0}, 5], Cylinder[{{0, 0, -5}, {0, 0, 5}}, 2]}] 
 ... 
[graphics3d] [finite-element-method] [regions] [opencascade]
 

asked by TTTT2025 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=108285 Score of 5

answered by cvgmt https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=72111 Score of 13

11.27.1.7 Can ContourPlot handle variables defined as part of a list?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=314763

The following code works fine 
... 
[plotting] [list-manipulation] [evaluation]
 

asked by florin https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=54979 Score of 3

answered by Bob Hanlon https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=9362 Score of 7