# ASIN()

Compatible with:
DOS Maximite CMM MM150 MM170 MM+ MMX Picromite ArmiteL4 Armite F4 ArmiteH7 Picomite CMM2

Syntax:
ASIN( number )

Description:
Returns the inverse sine value of the argument 'number' in radians.

y = RAD(30) ' convert degrees to radians
PRINT "y= ";y
x = SIN(y)
PRINT "x= ";x
r = ASIN(x)
PRINT "r= ";r
z = DEG(r) ' convert radians to degrees
PRINT "z= ";z
output:
y= 0.5235987756
x= 0.5
r= 0.5235987756
z= 30

If your system doesn't have ASIN()

FUNCTION ASIN(x)
' angle in radians
ASIN=2*ATN(x/(1+SQR(1-x*x)))
END FUNCTION

Last edited: 29 September, 2020