Expm1

Function Expm1

The Expm1 function computes an exponential of vector elements decreased by 1.

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	33.71	33.45	159.35
	LA	33.46	33.45	159.14
	EP	33.40	33.37	159.14
double	HA	69.58	71.69	125.42
	LA	33.28	33.17	125.42
	EP	33.21	33.17	125.42

Notes:
1) Units - CPE (Clocks per Element)
2) Performance was measured on "working" interval (double precision: [-500.0, 500.0]; single precision: [-70.0, 70.0])
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	0.50	0.50	0.50
	LA	0.50	0.50	0.50
	EP	0.50	0.50	0.50
double	HA	0.50	0.50	0.50
	LA	1.93	1.93	0.50
	EP	2.51	2.51	0.50

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

Performance Graphs:

Legal Information