B&B Electronics VFG3000 - Manual - Manual (Page 227)

F UNCTION R EFERENCE ATAN 2( A , B )
R EVISION 1 P AGE 211
ATAN 2
(
A
,
B
)
A RGUMENT T YPE D ESCRIPTION
a float The value of the side that is opposite the angle theta.
b float The value of the side that is adjacent to the angle theta
D
ESCRIPTION
This function is equivalent to atan(a/b) , except that it also considers the sign of a and b ,
and thereby ensures that the return value is in the appropriate quadrant. It is also capable of
handling a zero value for
b , thereby avoiding the infinity that would result if the single-
argument form of tan were used instead.
F UNCTION T YPE
This function is passive.
R
ETURN
T
YPE
float .
E XAMPLE
theta := atan2(1,1)