WOLFRAM SYSTEM MODELER
atan3bObsolete function: Four quadrant inverse tangent (select solution that is closest to given angle y0) |
|
SystemModel["PlanarMechanics.Utilities.Functions.atan3b"]

This function returns y = atan3(u1,u2,y0) such that
tan(y) = u1/u2 and
y is in the range: -pi < y-y0 < pi.
u2 may be zero, provided u1 is not zero. The difference to
Modelica.Math.atan3(…)
is that the derivatives of atan3 are explicitly defined here.
atan3b_der for 1st derivative and atan3b_dder for 2nd derivative of this function.
| u1 |
Type: Real |
|---|---|
| u2 |
Type: Real |
| y0 |
Default Value: 0 Type: Angle (rad) Description: y shall be in the range: -pi < y-y0 < pi |
| y |
Type: Angle (rad) |
|---|
Developed 2010 at the DLR Institute of System Dynamics and Control