1.15.1 Top new questions this week

1.15.1.1 How to create a spiral using Golden Triangles

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=239914

Working with students in a pre-calculus class, an application of the sine law. They are working on a question that has them create a Golden Triangle (A golden triangle is an isosceles triangle in ...

asked by Tom De Vries https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=721 14 votes

answered by J. M.’s ennui https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=50 14 votes

1.15.1.2 How to modify default options of Dataset

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=239960

I try to make a dark stylesheet based on the ReverseColor theme. However, dataset headers are barely readable.

This question is related to others such as Question ...

asked by Vly https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=47700 9 votes

answered by kglr https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=125 8 votes

1.15.1.3 How to use Filling in PolarPlot?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=239946

For example: PolarPlot[{1, 1 + 1/10 Sin[10 t]}, {t, 0, 2 Pi}]

how to fill color in the space between 2 functions?

asked by DORA https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=74396 8 votes

answered by kglr https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=125 11 votes

1.15.1.4 How to reduce timing to find the integer numbers a, b, c, d, e, f, g, h, k, m of this equation?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=239874

I use by hand to get this result

\[\sqrt {48+5 \sqrt {3}+\sqrt {27+4\sqrt {3}+\sqrt {12+3 \sqrt {3}+\sqrt {4+2\sqrt {3}}}}}=1+4 \sqrt {3}\]

asked by minhthien_2016 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=5320 7 votes

answered by yarchik https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=9469 6 votes

1.15.1.5 How to extract a column (or a row) of a matrix as another column vector/ column matrix (or a row vector), not as a list?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=240123

Suppose I have a matrix ’mat’ as

mat = Table[Subscript[m, i, j], {i, 5}, {j, 5}]; 
mat // MatrixForm

I want to extract the first column (or any row) as

asked by PoreyS https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=54258 6 votes

answered by kglr https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=125 6 votes

1.15.1.6 Intuitive explanation of RemoteBatchSubmit[] in AWS for total novices?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=240149

When I read Wolfram’s post about the new features in MMA 12.2 I was intrigued by RemoteBatchSubmit[]. He wrote:

I have only ever used MMA from my laptop, and never used any other cloud computing or ...

asked by TumbiSapichu https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=53229 6 votes

1.15.1.7 Solving a 2D heat equation on a square with Dirichlet boundary conditions

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=240090

I am trying to solve the following heat equation problem on the square [0,1]x[0,1]. 
\begin{equation*}  \begin{gathered}  u_t = u_{xx} + u_{yy} + f(x,y,t), \qquad  u(x,y,0) = 0, \qquad  u=0 \text{ on ...

asked by kroner https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=77278 6 votes

answered by Nasser https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=70 7 votes