truncate/ -- r7rs Definition procedure;
Procedure variants:
((real-not-nan real-not-zero-not-nan) -> (real-not-nan real-not-nan))
real-not-nan;real-not-zero-not-nan;real-not-nan;real-not-nan;((real real-not-zero) -> (real-nan real-nan))
real;real-not-zero;scheme:base -- (scheme base);scheme -- (scheme);Please refer to
floor/.