2.15 Thursday, September 3, 2020

2.15.1 Top new questions this week

Is it possible to call back to Mathematica when using Python through ExternalEvaluate?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=229164

makes it possible to call Python code from Mathematica. The Wolfram Client for Python makes it possible to call Mathematica from Python. When using ...

asked by Szabolcs https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=12 8 votes

answered by Riccardo Di Virgilio https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=51868 3 votes

Camera view along the trajectory

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=229242

I want to create an animation like this one: https://www.youtube.com/watch?v=rvzZmNW2_70 After googling I have found just below informations about this issue: https://twitter.com/bencbartlett/status/...

asked by Mustafa Kosem https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=74423 7 votes

answered by C. E. https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=731 6 votes

How to select 2 pairs of distinct twins form a list of 4-tuples?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=229409

Given a list of 4-tuples as follows. data = Tuples[Range@6, 4]; I want to select any 4-tuples with two pairs of different twins, for example, as follows:

asked by Wissen Macht Frei https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=42141 6 votes

answered by kglr https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=125 3 votes

Combine two plots with reversed y-axis

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=229128

I need to display two y-values for a list of points. I tried doing this:

asked by Rodrigo https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=43431 6 votes

answered by LouisB https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=22158 4 votes

Can this probability function speed be improved?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=229239

I have a process that as part of it requires a certain probability query, specifically, given a multinomial distribution with f equiprobable categories and r trials, some specific category has a given ...

asked by ciao https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=11467 5 votes

answered by JimB https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=19758 4 votes

Embed a rose flower image in 3D space with axes labeled in UTF8

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=229299

I am trying to create an image in which a rose flower image in a 3D space with axes labeled in UTF8! Labels don’t render correctly and not sure how to put the image at say the original of XYZ space.

asked by chikitin https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=74442 4 votes

answered by flinty https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=72682 4 votes

Simplify Nested Lists

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=229427

I have a problem with nested lists. For example, i have this list:

asked by aptmess https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=58120 4 votes

answered by kglr https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=125 7 votes

2.15.2 Greatest hits from previous weeks

How can I plot implicit equations?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=34668

If you enter the following into Wolfram | Alpha, you get nice graphs:

graph 4 x^4 + y^2 = 2  How do you do this in Mathmatica? I realize that these are not ...

asked by Rollie https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=10174 36 votes

answered by Timothy Wofford https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=9391 38 votes

My Girlfriend is going to prison...Save her with Math

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=135937

Salacious title, but true story.

asked by Prisoners Dilema https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=46025 42 votes

answered by bobthechemist https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=7167 23 votes

Image processing: Floor plan - detecting rooms’ borders (area) and room names’ texts

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=19546

Here is a simple building floor plan. I would like to derive the rooms as (rectangular) components and the names of the rooms. This is very common representation of building floor plans.

The problem

asked by s.s.o https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=840 64 votes

answered by Niki Estner https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=242 59 votes

Crack CAPTCHA using deep learning

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=143691

Deep convolutional neural networks are very good at computer vision related tasks. Optical Character Recognition (OCR) is one important branch of computer vision.

In fact, the convolution neural ...

asked by xslittlegrass https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=1364 87 votes

answered by xslittlegrass https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=1364 98 votes

Solving \(L=\frac {3}{2} \sqrt {4 \pi ^2 A^2+W^2}-\frac {\sqrt {5 W \sqrt {4 \pi ^2 A^2+W^2}+6 \pi ^2 A^2+3 W^2}}{\sqrt {2}}+\frac {3 W}{2}\) for \(W\)

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=57763

When I solve the aforementioned equation for \(W\) or \(A\) on Mathematica I get a long and ugly equation in return, namely one of the solutions for \(W\) is: (attempt to read at your own health)

asked by J.D’Almbert https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=19257 8 votes

answered by Alexei Boulbitch https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=788 15 votes

Entering numbers in Scientific Notation?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=36792

I need to play with a lot of powers such as 10^-3,1E-3 does not work for it. Is there any short form for it?

asked by hhh https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=2000 59 votes

answered by Joe https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=44710 1 vote

Finding unit tangent, normal, and binormal vectors for a given r(t)

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=18598

For my Calc III class, I need to find \(T(t), N(t)\), and \(B(t)\) for \(t=1, 2\), and \(-1\), given \(r(t)=\{t,t^2,t^3\}\).

I’ve got Mathematica, but I’ve never used it before and I’m not sure how to coerce ...

asked by a98 https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=5605 30 votes

2.15.3 Can you answer these questions?

How to force FindClusters to return a specific number of clusters?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=229313

I am using FindClusters with the Method -> "KMedoids" option. I am specifying a desired number of clusters. It returns with many fewer than the desired number. Is there a way to force it ...

asked by abwatson https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=1709 2 votes

Calculate a nested integral

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=229251

I wish to plot the following probability on Mathematica: \[ \pi =n\cdot \int _{-\infty }^{+\infty }\int _{-\infty }^{+\infty } \]

asked by Avocaddo https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=68764 1 vote

Differents Initial Conditions for NDSolve

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=229185

I would like to solve a system of differential equations and another euqtions conect to the system. For example:

asked by Slayz https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=74408 1 vote