in reply to
Learning functional programming (Book)
comments about How to add value to them.:
My comment is 'Comment'.  That is annotate, eg, (first cut)    "infinite series        -- simple tied array which returns the next value of a mathematical series ( forever! ) -- includes useful references"
( As to structure... maybe that will emerge :-). )
By rote learning.
Via Genetic memory.
It's provided by my firmware.
I just remember them.
Thirty days hath September
My computer gets it right, usually.
I just ask someone else.
Someone punches me on the first of the month.
Results (244 votes),