在哪里可以找到有关floorf等所有数学函数的描述？

Question

math.h is not really a documentation. Is there something else that will describe these functions a but more in detail?

Answer 1

Since you indicated math.h I suppose you are using C++ so here's my currently booked marked reference

http://www.cplusplus.com/reference/clibrary/cmath/

Answer 2

floorf() is a variant for the floor() function, accepting and returning float values instead of double.

The GNU Libc documentation is very helpful.

The iPhone documentation also has a man page about floor() functions .