HEIDENHAIN ITNC 530 User Manual

HEIDENHAIN iTNC 530 321
9.4 Trigonometric functions
9.4 Trigonometric functions
Definitions
Sine, cosine and tangent are terms designating the ratios of sides of
right triangles. In this case:
where
 c is the side opposite the right angle
 a is the side opposite the angle α
 b is the third side.
The TNC can find the angle from the tangent:
α = arctan (a / b) = arctan (sin α / cos α)
Example:
a = 25 mm
b = 50 mm
α = arctan (a / b) = arctan 0.5 = 26.57°
Furthermore:
a² + b² = c² (where a² = a x a)
b
c
a
Þ
Sine: sin α = a / c
Cosine: cos α = b / c
Tangent: tan α = a / b = sin α / cos α
c (a² + b²)=

HEIDENHAIN ITNC 530 Specifications

General

Brand	HEIDENHAIN
Model	ITNC 530
Category	Control Systems
Language	English