ATN()

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

Syntax:
ATN( number )

Description:
Returns the arctangent of the argument 'number' in radians.

y = RAD(45) ' convert degrees to radians
x = TAN(y)
r = ATN(x)
z = DEG(r)

PRINT "y= ";y
PRINT "x= ";x
PRINT "r= ";r
PRINT "z= ";z

y = RAD(210) ' convert degrees to radians
x = TAN(y)
r = ATN(x)
z = DEG(r)
PRINT
PRINT "y= ";y
PRINT "x= ";x
PRINT "r= ";r
PRINT "z= ";z

output:
y=  0.7853981634
x=  1
r=  0.7853981634
z=  45

y=  3.665191429
x=  0.5773502692
r=  0.5235987756
z=  30

Use ATAN2 if you need to differentiate between all quadrants

 

Last edited: 29 September, 2020