米6体育平台手机版

3.4 Table of Results

Hardware

AM243x LaunchPad

Software

Table 3-1 Table of Results - Arm Cortex®-R5F

Trig Function	Library	C Function	Input Range [Rad]	Max Error	Max Cycles	Avg Cycles	Approximation Type
Sine	C <Math.h>	sinf()	Any	0.0000000296	179	150	Polynomial
	CMSIS	arm_sin_f32()	Any	0.0000181917	48	48	Lookup table (2 KB)
	TI Arm Trig	ti_arm_sin()	0:2π	0.0000007225	29	29	Polynomial
Cosine	C <Math.h>	cosf()	Any	0.0000000297	179	150	Polynomial
	CMSIS	arm_cos_f32()	Any	0.0000183477	50	50	Lookup table
	TI Arm Trig	ti_arm_cos()	0:2π	0.0000002863	37	37	Polynomial
Sine + Cosine	C <Math.h>	NA	-	-	-	-	-
	CMSIS	arm_sin_cos_f32()	Any	0.0000006100	83	83	Lookup table
	TI Arm Trig	ti_arm_sincos()	0:2π	0.0000001925	54	54	Polynomial
Arcsine	C <Math.h>	asinf()	Any	0.0000000590	213	132	Polynomial
	CMSIS	NA	-	-	-	-	-
	TI Arm Trig	ti_arm_asin()	Any	0.0000003428	59	59	Polynomial
Arccosine	C <Math.h>	acosf()	Any	0.0000001792	128	87	Polynomial
	CMSIS	NA	-	-	-	-	-
	TI Arm Trig	ti_arm_acos()	Any	0.0000004295	64	64	Polynomial
Arctangent	C <Math.h>	atanf()	Any	0.0000001748	128	87	Polynomial
	CMSIS	NA	-	-	-	-	-
	TI Arm Trig	ti_arm_atan	Any	0.0000001748	64	64	Polynomial
Arctangent2	C <Math.h>	atan2f()	Any	0.0000002021	222	148	Polynomial
	CMSIS	NA	-	-	-	-	-
	TI Arm Trig	ti_arm_atan2	Any	0.0000002957	59	49	Polynomial