C99 math functions:

	("float"-versions of existing "double" functions)
	acosf
	asinf
	atan2f
	atanf
	ceilf
	cosf
	expf
	floorf
	fmodf
	frexpf
	hypotf
	log10f
	logbf
	logf
	modff
	powf
	sinf
	sqrtf
	tanf

	(functions generally missing, plus their "float" counterparts)
	acosh
	asinh
	cbrt
	erfc
	exp2
	expm1
	fdim
	fma
	fmax
	fmin
	ilogb
	lgamma
	log1p
	log2
	lrint
	lround
	nearbyint
	nexttoward
	remainder
	remquo
	round
	scabln
	scalbn
	sinh
	tanh
	tgamma
	trunc