High precision function check:

• asinh(1) = 0.881373587019543
• acosh(1e300) = 691.4686750787736
• atanh(0.5) = 0.5493061443340548
• expm1(1) = 1.718281828459045
• log1p(10) = 2.3978952727983707
• sinh(1) = 1.1752011936438014
• cosh(10) = 11013.232920103324
• tanh(1) = 0.7615941559557649