atan2(3f)
NAME
atan2, datan2 − Fortran arctangent intrinsic function
SYNTAX
real r1, r2, r3
double precision dp1, dp2, dp3
r3 = atan2(r1, r2)
dp3 = datan2(dp1, dp2)
dp3 = atan2(dp1, dp2)
DESCRIPTION
The atan2 function returns the arctangent of arg1/arg2 as a real value. The datan2 returns the double-precision arctangent of its double-precision arguments. The generic form atan2 may be used with impunity with double-precision arguments.