Recent discussions on Discourse suggest that not all users know about apropos (or equivalently, using ?"..." for text search). The startup message currently mentions

Type "?" for help, "]?" for Pkg help.

I suggest that text search is added to this, but I am still looking for a compact way of phrasing it.

Consider the following system and its solution:

from sympy import *
from sympy.abc import j,f

# augmented matrix
a=Matrix([
[1,  1, 1,  1, 1,  1, 1,  1,  1],
[0, -1, 0, -1, 0, -1, 0, -1, -j],
[0,  0, 0,  0, 1,  1, 1,  1,  f]
])

x=Matrix(list(linsolve(a))[0])

# check if x is a solution
a[:,:-1]*x-a[:,-1] # should be all 0 but the second term is 'tau0-tau1'

Do you have an

Spotted this in the coding guidelines:

flake8 astropy --count --select=E101,W191,W291,W292,W293,W391,E111,E112,E113,E30,E502,E722,E901,E902,E999,F822,F823

however, the pull request template encourages the much simpler tox -e codestyle. We should replace it.

Is your feature request related to a problem? Please describe.
I'm studying geosat flares (link, link) and want to have a better idea of the cone of darkness that is created at a given distance.

Describe the solution you'd like
I want to select an object (satellite, moon, even planet) and see the

Version of Singularity:

3.0.3

Expected behavior

Some progress or update information during the creation of the SIF file.

Actual behavior

During "Creating SIF file..." step, the console does not produce any visible output for the user - but does create the resulting file eventually.

Steps to reproduce behavior

I was executing a few “larger” builds through the bui

🙋 Feature Request

🔦 Context

What is the feature ?

I'm trying out this library for the first time and I'm seeing several places where some shorthand functions would have been really pleasant:

1. Shorthand functions for Pos: Pos::top_right, Pos::bottom_right, Pos::bottom_center etc..
2. Short way to set colors for components. My plots are supposed to be white-on-black, which requires a lot of boilerplate on lots o

I'll show a brief program below. The program demonstrates unclear/consistent behavior of the size, width and height arguments when creating a new Rect. Using the argparse module, the user can easily create a rectangle using the size argument. When the program isn't given any argument, the width and height argument of Rect() are used and then the the proper size is used for the rectangle, if the

To make projectiles leave a trail after it has hit something or despawns, so it doesn't disappear instantly. And the same for free floating toxins. A way to do it might be by turning off the emitter on despawn and have a timer that QueueFrees the particles on timeout

We either do this all ourselves or do some reordering somewhere, I forget. But we should use the LaTeXML option now! brucemiller/LaTeXML#1044