Acosh

Function Acosh

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

Performance:

		Intel(R) Xeon(R) processor 5100 Series	45nm Intel(R) Core(TM)2 Duo Processor	Intel(R) Itanium(R) 2 processor
single	HA	14.05	10.91	13.27
	LA	14.05	10.91	13.27
	EP	8.66	7.98	13.27
double	HA	83.77	93.02	18.57
	LA	45.37	29.22	18.35
	EP	45.32	27.00	18.35

Notes:
1) Units - CPE (Clocks per Element)
2) Performance was measured on "working" interval (double precision: [ -1.0 ; +1.0 ]; single precision: [ -1.0 ; +1.0 ])
3) Data - vectors of 1000 elements with random generated numbers.

Accuracy:

		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	1.85	1.85	0.50
	EP	2.08E+03	2.08E+03	0.50
double	HA	0.50	0.50	0.50
	LA	2.41	2.41	0.50
	EP	2.45	2.45	0.50

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

Performance Graphs:

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