Apart from giving the eccentricity of the ellipse ("bar")
in the disk, and the inclination of the disk, the two angles in this routine
are **theta** and **phi**, of which only one needs to be given.

**ba=**- Axis ratio of bar. An array is allowed, in
*nemoinp(1NEMO)*notation. No default. **inc=**- Inclination of disk in which the ellipse ("bar") is located. An array is allowed. No default.
**phi=**- Angle between bar and disk in sky plane. An array
is allowed. Either phi or theta (not both) are required. It determines if
projection (
**theta**given) or deprojection (**phi**given) is done. **theta=**- Angle between bar and disk in galax plane. Again an array is allowed.
**a=**- Length
of the bar (currently only projected) bar. If this option is used, the stick
formulae (ba=0) will be applied, and errors can be computed using
**dphi=**. **dba=**- Error term in b/a. Useful if you want to compute errors in (de)projected parameters using nsim=
**dphi=**- Error term in phi.
**nsim=**- Number of monte carlo to perform to compute an error term. [0]
**seed=**- Seed for random number generator. [0]

% ellipse 0.3 45 20:30:2 De-projecting ellipse: b/a inc phi b/a’ theta phi_kin 0.3 45 20 0.376558 29.4085 -46.4712 0.3 45 22 0.368488 31.9773 -45.7525 0.3 45 24 0.360246 34.4675 -44.8267 0.3 45 26 0.351921 36.8805 -43.7464 0.3 45 28 0.343591 39.2183 -42.5507 0.3 45 30 0.335325 41.4834 -41.2693

Skillman et al. A&A 198, 33 (1988), p39. Arnaboldi et al. 1995AJ....110..199A

fall-1986V0.0 formulae derived for Skillman et al paperPJT 23-Apr-03V0.3 added phi_kinPJT 28-aug-03V0.4 added a= for stick formulae of bars, +errorsPJT