9.19.1 Top new questions this week

9.19.1.1 How to use the new LLMFunction?
9.19.1.2 How can I change the data arrangement in a list?
9.19.1.3 Reasoning about rational numbers
9.19.1.4 How to correctly use LazySubsets from Wolfram's Lazy package?
9.19.1.5 Adding Edge and Vertices to already made graph?
9.19.1.6 Evaluate a function with two lists and table
9.19.1.7 How to export SD file with metadata?
9.19.1.1 How to use the new LLMFunction?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=285713

How does one install and use the new LLMFunction described in Wolfram blog ? 
[llmfunction]
 
asked by Nasser https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=70 Score of 12
answered by Nasser https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=70 Score of 11
9.19.1.2 How can I change the data arrangement in a list?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=285749

I have data that, when imported to my notebook, is shown in the form: 
 list = {{1,2,3},{4,5,6},{7,8,9},{10,11,12}} 
I want to transform this into: 
... 
[list-manipulation]
 
asked by Pedro Croti https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=81466 Score of 7
answered by NonDairyNeutrino https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=46490 Score of 7
9.19.1.3 Reasoning about rational numbers

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=285880

If $x$ is a positive rational number, then of course so is $2 x$. 
How can we make Mathematica yield this result? 
The obvious approach doesn't work: 
... 
[equation-solving] [rationals] [memberq]
 
asked by David G. Stork https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=9735 Score of 6
answered by Nasser https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=70 Score of 10
9.19.1.4 How to correctly use LazySubsets from Wolfram's Lazy package?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=285962

I know that  Subsets[list]  gives the power set of list and  Subsets[list,{k}]  gives all subsets containing exactly $k$ elements. 
... 
[combinatorics] [lazy-computations]
 
asked by licheng https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=67902 Score of 5
answered by xzczd https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=1871 Score of 7
9.19.1.5 Adding Edge and Vertices to already made graph?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=285904

I have a notebook that generates a hexagonal grid graph and its vertex connectivity, coordinates, and numbers as an input for an FEA program in matlab. I simply want to add members to this shape (or ... 
[graphics] [functions] [graphs-and-networks] [code-request]
 
asked by c.moon https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=92958 Score of 5
answered by kglr https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=125 Score of 7
9.19.1.6 Evaluate a function with two lists and table

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=285883

I have the following function: 
 f[x_,y_]:=x^2/y 
 
and two sample lists (that are actually longer): 
 x={2,4,6} 
y={3,5,7} 
 
I want to ... 
[list-manipulation] [table]
                                                                                  

                                                                                  
 
asked by Jhoan Perez https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=51710 Score of 5
answered by Syed https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=81355 Score of 8
9.19.1.7 How to export SD file with metadata?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=285787

Despite the fact that Mathematica (V13.2) is able to import an SD file with corresponding metadata for each structure, e.g. 
... 
[export] [chemistry] [metadata]
 
asked by Armin Vollmer https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=54621 Score of 5
answered by Jason B. https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=9490 Score of 5