This system provides some numerically stable, contracted versions of

common but unstable floating-point operations.

Export	(AKA)	Computes
log1+	log1p	log (1 + x)
log1-	log1m	log (1 - x)
log1+/x		(log (1 + x))/x
exp-1	expm1	exp(x) - 1
exp-1/x		(exp(x)-1)/x
expt-1	powm1	(x^y)-1
log1-exp	log1mexp	log(1 - exp(x))
log1+exp	log1pexp	log(1 + exp(x))
log2-exp	log2mexp	log(2 - exp(x))
logexp-1	logexpm1	log(exp(a) -1)
hypot		sqrt(x^2 + y^2)