List of simple formalized function:
Functions in math.h |
Functions Formula |
|---|---|
sin(x), cos(x), tan(x) |
\(\sin x, \cos x, \tan x\) |
asin(x), acos(x), atan(x) |
\(\arcsin x, \arccos x \arctan x\) |
sinh(x), cosh(x), tanh(x) |
\(\sinh x, \cosh x, \tanh x\) |
exp(x), log(x), log10(x) |
\(\text{e}^x, \ln x, \log x\) |
pow(x, y) |
\(x^y\) |
ldexp(x, n) |
\(x \cdot 2^n\) |
sqrt(x) |
\(\sqrt{x}\) |
ceil(x), floor(x) |
\(\lfloor x \rfloor, \lceil x \rceil\) |
fabs(x) |
\(|x|\) |
fmod(x, y) |
float remainder of \(x/y\) |
modf(x, double* ip) splits x into the integral and fraction part, stores in the double* ip and returned respectively. Both parts of with the same sign as x.Notice that almost all of the functions implemented in <math.h> are the float version, the corresponding int version might be found in <stdlib.h>, such as abs(n), mod(n).