The functions abs, sign, sqrt, floor,
ceiling, trunc, round, signif, exp,
log, expm1, log1p, cos, sin, tan,
acos, asin, atan, cosh, sinh,
tanh, acosh, asinh, atanh, lgamma,
gamma, digamma, trigamma, cumsum,
cumprod, cummax, cummin for hyperSpec objects.