Stavros Macrakis

Today, we have sort(list) and sort(list,predicate fun). What if we allow sort(list,key) where key can be a number or a list of numbers which specify the keys? Fully compatible, although it does violate the principle that static analysis should tell you the meaning. For example, sort(...,f) could mean sort by a function or sort by a key specification, depending on the value of f. We could compatibly also add sort(list,predicate fun,keyfun), maybe using false to specify the default predicate.

sign("foo") => Lisp error

sign("foo") => Lisp error

sign of nonscalar inconsistent

floor/ceiling/round of large bfloats gives errors

floor/ceiling/round of large bfloats gives errors

Range reduction for periodic trig functions

complexify fails on rats