ASTEVAL

Name

asteval

Purpose

Evaulate an astrometric polynomial function.

Description

Calling Sequence

val=asteval,ind,coeff,terms

Inputs

x - X - coordinate (scalar or vector)
y - Y - coordinate (scalar or vector)
coeff - Coefficients of the transformation, this must be a vector that has
the terms to be used, the length must be equal to total(terms)
terms - Which terms to use, see documentation for ASTTERMS.PRO for the
expected content of this input variable.

Optional Input Parameters

Keyword Input Parameters

Outputs

return value - Dependent value(s), if x,y was 1-d then this will be scalar.

Keyword Output Parameters

Common Blocks

Side Effects

Restrictions

Procedure

Modification History

1997/06/17, Written by Marc W. Buie, Lowell Observatory
2009/06/22, MWB, minor modification to preserve rank of the result.
2009/11/12, MWB, rework logic for returning data with proper rank