Publications by Isomorphismes
Hacks for thinking about high-dimensional space
High-dimensional Euclidean space is ℝ×ℝ×ℝ×ℝ×ℝ×…. Cartesian product of many continuous quantities. You are already familiar with the concept via “an arbitrary number of sliders” or “an arbitrary number of columns in a spreadsheet”. Pivot tables are the normal way business people navigate a low-dimensional subset of a high...
7391 sym R (283 sym/2 pcs) 58 img
Catalan numbers for triangulations gambler’s ruin binary…
Catalan numbers for triangulations gambler’s ruin binary trees trees …from the Flajolet/Sedgewick coursera analysis of algorithms in R: catalan <- function(n) { if(n (This is slow above catalan(10) though, so here’s a memoised version. Then if you want to run above catalan(250) you’ll need to adjust options(expressions=5e3) to s...
765 sym R (33 sym/1 pcs) 10 img
Clay tablet YBC 7289 with an overlay to emphasize the…
Clay tablet YBC 7289 with an overlay to emphasize the markings on its surface. The cuneiform inscriptions demonstrate the derivation of the square root of 2 … in sexagesimal (base-60) via Paul Murrell the tablet has been dated to sometime between 1800 BC and 1600 BC. Little is known of its rediscovery, except that it was acquired in 1912 AD b...
822 sym 2 img
Craig Venter’s first chromosome
is, I think, the one you can find at sacred-texts.org. curl -O 'http://www.sacred-texts.com/dna/hgp011k.htm' #get it #BORING DATA JANITORSHIP tail -n +15 hgp011k.htm > hgp011k #remove the HTML head stuff .. up to <pre> head -n -3 hgp011k | sponge hgp011k #remove the HTML tail #the `sponge` nonsense is because `command < file > file` will jus...
1311 sym R (2048 sym/4 pcs)