Arccos 104, Arcus cosinus function 104, Arccos 1) – West Control Solutions KS98-1 User Manual
Page 104
III-3.6
ARCCOS (arcus cosinus function (No. 85))
y
x
1
arccos 1)
=
(
valid for x
x
_
:
1
1
1
1
- £ £+
The function provides the arcus sinus of the input value, i.e.
x1 is the angle the arcus sinus of which is calculated. Pa-
rameter
Select is used to adjust, if the angle is provided in degree of angle [°] or in radian.
Calculation is either as degree of angle [0° ... 180°] or as radian [0... ó]. With arguments out of the function validity
range, output
y1 is set to 1,5 w 10
37
(
x1<-1) or -1,5 w 10
37
(
x1>1 ).
Example degree of angle:
y1= arccos(x1) x1 = 0,5°
=
y1 = 60
Example radian:
y1= arccos(x1) x1 = 0,5rad
=
y1 = 1,047
Parameter
Description
Controller display
Select
Unit: degree of angle (default)
Ang.deg
Unit: radian
Radian
9499-040-82711
Trigonometric functions
ARCCOS (arcus cosinus function (No. 85))
III-104
x1
y1
Select
(y1) = arccos (x1)