PM2Ring

Here's my new version of the "Start Chatjax" bookmarklet.

javascript:(()=>{if(window.MathJax===undefined){const%20script=document.createElement("script");script.src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.1/MathJax.js?config=TeX-AMS_HTML";script.text='MathJax.Hub.Config({extensions:["tex2jax.js"],tex2jax:{inlineMath:[["$","$"],["\\\\\\\\\\\\(","\\\\\\\\\\\\)"]],displayMath:[["$$","$$"],["\\\\[","\\\\]"]],processEscapes:true},jax:["input/TeX","output/HTML-CSS"]});MathJax.Hub.Startup.onload();';document.head.append(script);(function%20doChatJax(){setTimeout(doChatJax,1000);MathJax.Hub.Queue(["Typeset",MathJax.Hub]);})();}else{MathJax.Hub.Queue(["Typeset",MathJax.Hub]);}})();

And here's the "Render Mathjax" bookmark. It's more efficient to use this version on static pages, like the Chat transcripts.

javascript:(()=>{if(window.MathJax===undefined){const%20script=document.createElement("script");script.src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.1/MathJax.js?co

PM2Ring

PM2Ring

PM2Ring

PM2Ring

PM2Ring

PM2Ring

""" Kepler binary orbit plot, using eccentric anomaly
    Written by PM 2Ring 2023.10.05
"""

from functools import lru_cache

@lru_cache(int(3))
def kepler(ec, N):
    """ Solve Kepler's equation for N equal timesteps """
    out = []

PM2Ring

# Tensegrity twisted prism. PM 2Ring 2024.08.31

def ball(radius, **kwargs):
    var('u,v')
    kw = dict(plot_points=40) | kwargs
    return spherical_plot3d(radius, (u, 0, 2*pi), (v, 0, pi), **kw)

def axis_matrix(W):
    a, b, c = W
    if abs(c) == 1:

PM2Ring

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PM2Ring