tgmath.h

tgmath.h is a Standard C header that defines many type-generic macros that can be used for a variety of mathematical operations. This header also includes math.h and complex.h. For all of the functions in the math.h and complex.h headers that do not have an f (float) or l (long double) suffix, and whose corresponding type is double (with the exception of modf()), there is a corresponding macro.

Functions from math.h

Name	Description
acos	inverse cosine
asin	inverse sine
atan	one-parameter inverse tangent
atan2	two-parameter inverse tangent
ceil	ceiling, the smallest integer not less than parameter
cos	cosine
cosh	hyperbolic cosine
exp	exponential function
fabs	absolute value (of a floating-point number)
floor	floor, the largest integer not greater than parameter
fmod	floating-point remainder
frexp	break floating-point number down into mantissa and exponent
ldexp	scale floating-point number by exponent (see article)
log	natural logarithm
log10	base-10 logarithm
modf(x,p)	returns fractional part of x and stores integral part where pointer p points to
pow(x,y)	raise x to the power of y, xy
sin	sine
sinh	hyperbolic sine
sqrt	square root
tan	tangent
tanh	hyperbolic tangent

Functions from complex.h

Name	Description
cacos	inverse cosine
casin	inverse sine
catan	one-parameter inverse tangent
catan2	two-parameter inverse tangent
cceil	ceiling, the smallest integer not less than parameter
ccos	cosine
ccosh	hyperbolic cosine
cexp	exponential function
cfabs	absolute value (of a floating-point number)
cfloor	floor, the largest integer not greater than parameter
cfmod	floating-point remainder
cfrexp	break floating-point number down into mantissa and exponent
cldexp	scale floating-point number by exponent (see article)
clog	natural logarithm
clog10	base-10 logarithm
cmodf(x,p)	returns fractional part of x and stores integral part where pointer p points to
cpow(x,y)	raise x to the power of y, xy
csin	sine
csinh	hyperbolic sine
csqrt	square root
ctan	tangent
ctanh	hyperbolic tangent

See also

• Trigonometric Functions
• Hyperbolic Trigonometric Functions