The model is supplied in the array coeffs. Naming the elements of coeffs as follows:

  coeffs[0] = A
  coeffs[1] = B
  coeffs[2] = C
  coeffs[3] = D
  coeffs[4] = E
  coeffs[5] = F

the model is applied thus:

  xp = A $+$ B $\ast$ xm $+$ C $\ast$ ym
  yp = D $+$ E $\ast$ xm $+$ F $\ast$ ym

The residuals are (xp - xe) and (yp - ye).

If np is less than or equal to zero, no coordinates are transformed, and the RMS residuals are all zero.

palPxy ( int np, double xye[][2], double xym[][2], double coeffs[6], double xyp[][2], double $\ast$xrms, double $\ast$yrms, double $\ast$rrms )

np = int (Given)

xye = double[np][2] (Given)

xym = double[np][2] (Given)

coeffs = double[6]

xyp = double[np][2] (Returned)

xrms = double (Returned)

yrms = double (Returned)

rrms = double (Returned)

palFitxy, palInvf, palXy2xy and palDcmpf