macro
boot.janet on line 1221, column 1
(tracev x)
Print to stderr a value and a description of the form that produced
that value. Evaluates to x.
(defn knorkulate [a b]
(tracev (+ a (* b b ))))
# <function knorkulate>
(knorkulate 2 34)
# trace on line 2, column 1: (+ a (* b b)) is 1158
# 1158