Elementary unary functions on reals

Syntax	void QLA_R_eqop_func_R ( restrict QLA_Real *r, QLA_Real *a)
Meaning	$r = {\rm func}(a)$
func	cos, sin, tan, acos, asin, atan, sqrt, fabs, exp, log, sign,
	ceil, floor, cosh, sinh, tanh, log10
eqop	eq