PM 2Ring 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

	# 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, 2pi), (v, 0, pi), *kw)

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

	""" 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 = []