Acosh

Function Acosh

The Acosh function computes an inverse hyperbolic cosine (nonnegative) of real vector elements.

Performance:

		Dual-Core Intel(R) Xeon(R) processor 5100 Series	45nm Intel(R) Core(TM)2 Duo processor	Intel(R) Itanium(R) 2 processor
single	HA	9.98	10.81	14.79
	LA	9.98	10.81	14.59
	EP	8.07	8.69	14.59
double	HA	35.35	22.36	15.43
	LA	16.36	19.26	15.43
	EP	16.36	19.20	15.43

Notes:
1) Units - CPE (Clocks per Element)
2) Performance was measured on "working" interval (double precision: [ 1.001, 1E+154 ]; single precision: [ 4, 1.00E+19 ])
3) Data - vectors of 1000 elements with random generated numbers.

Accuracy:

		Dual-Core Intel(R) Xeon(R) processor 5100 Series	45nm Intel(R) Core(TM)2 Duo processor	Intel(R) Itanium(R) 2 processor
single	HA	0.68	0.68	0.50
	LA	2.03	2.03	0.50
	EP	2.10E+03	2.10E+03	0.50
double	HA	0.50	0.50	0.50
	LA	2.69	2.69	0.50
	EP	2.69	2.69	0.51

Note: Units - ULP (Units in The Last Place).

Performance Graphs:

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