1.1.1 Top new questions this week

1.1.1.1 How can we find the longitude that cuts all the land on Earth in half?
1.1.1.2 Most efficient way to shift arrays
1.1.1.3 Applying Operators inside complex expressions to argument with Through
1.1.1.4 Possible bug in 12.3: NotebookDirectory[] returns not the notebook’s own directory, but that of an also opened copy of that notebook
1.1.1.5 Plotting Basins of Attraction of 3-dimensional system
1.1.1.6 Unexpected unpacking of wrapped PackedArray
1.1.1.7 When should I use ‘<>‘ instead of ‘  ‘ to join two strings?
1.1.1.1 How can we find the longitude that cuts all the land on Earth in half?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=249945

Mathematica has already a specific function, RegionCentroid, that can be utilized to calculate the geographic center of any region. As it has been discussed in here ...

asked by polfosol https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=37848 11 votes

answered by polfosol https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=37848 1 votes

1.1.1.2 Most efficient way to shift arrays

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=249865

I would like to know what would be the most efficient way to shift numerical 2D arrays along its dimensions as follows: A = Partition[Range[9], 3])//TableForm

asked by yarchik https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=9469 11 votes

answered by Lukas Lang https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=36508 13 votes

1.1.1.3 Applying Operators inside complex expressions to argument with Through

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=249806

I am developing some functions to help me work with Quantum Mechanics Momentum Operators. Here, for simplicity, I represent them with these simple functions because the actions of the operators ...

asked by Jorge https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=80260 7 votes

answered by Lukas Lang https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=36508 6 votes

1.1.1.4 Possible bug in 12.3: NotebookDirectory[] returns not the notebook’s own directory, but that of an also opened copy of that notebook

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=250094

I am using Windows 10 and found a bug concerning NotebookDirectory (and also NotebookInformation) in 12.3. It can be easily reproduced. Create a new notebook and save it as ...

asked by dnet https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=9251 6 votes

1.1.1.5 Plotting Basins of Attraction of 3-dimensional system

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=249910

I have a system of non-linear differential equations: \(\dot {x} = f(x,y,z),\) \(\dot {y} = g(x,y,z)\) and \(\dot {z} = h(x,y,z)\) with \(0 \leq x,y,z \leq 1.\) The restpoints of the system are \((1,0,0),\)

asked by egt123 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=80641 6 votes

answered by Alex Trounev https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=58388 5 votes

1.1.1.6 Unexpected unpacking of wrapped PackedArray

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=250067

I’m confused as to why the following leads to unpacking of a PackedArray: ...

asked by mmeent https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=10587 6 votes

answered by Szabolcs https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=12 5 votes

1.1.1.7 When should I use ‘<>‘ instead of ‘  ‘ to join two strings?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=249991

Both <>, i.e. StringJoin and ~~, i.e. ...

asked by felix https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=73581 6 votes

answered by Szabolcs https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=12 11 votes