Mercurial > hg > ishara

view general/funutils/TODO @ 61:eff6bddf82e3 tip

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Finally implemented perceptual brightness thing.
author samer
date Sun, 11 Oct 2015 10:20:42 +0100
parents 9d24b616bb06
children
line wrap: on
line source
Think about algebra of function handles - scanner_add_plotter etc
are special cases function combinators. What is the most general language
for function algebra? Is it the arrow algebra restricted to functional arrows?


Function combinators
	composition :        f*g(x) = f(g(x))
	parallel composition f+g(x,y)=f(x),g(y)

Function types
	state transformers: S->S
	scanner:            Y,X->Y
	folder:             X,S->S
	accum:              Y,S->X,S

Current special cases:
	scanner_add_plotter
	decorate

Also what about actions? (Function with side-effects or dependence on global state)