NAME: asteval PURPOSE: Evaulate an astrometric polynomial function. DESCRIPTION: CATEGORY: Astrometry 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