Warning: excluded identifier doesn't exist in module scheme: rationalize

Warning: excluded identifier doesn't exist in module scheme: make-rectangular

Warning: excluded identifier doesn't exist in module scheme: make-polar

Warning: excluded identifier doesn't exist in module chicken: random

Warning: excluded identifier doesn't exist in module chicken: randomize

Warning: excluded identifier doesn't exist in module chicken: conj

Warning: excluded identifier doesn't exist in module chicken: modulo

Warning: excluded identifier doesn't exist in module chicken: quotient

Warning: excluded identifier doesn't exist in module chicken: remainder

Warning: excluded identifier doesn't exist in module scheme: list-set!