| add | -- | add spectra together. |
| average | -- | average spectra. |
| barb | -- | arbitrarily broaden spectra. |
| bckfil | -- | back-projection filter. |
| bfilt | -- | band-pass filter. |
| blaze | -- | echelle blaze correction |
| cadd | -- | adds constant to spectra. |
| cdiv | -- | divides spectra by constant. |
| cmul | -- | multiplies spectra by const. |
| cpol | -- | Computes Stokes I and V |
| csub | -- | subtracts const off spectra. |
| div | -- | divide spectra. |
| exp | -- | take exponential of spectra. |
| group | -- | group spectra. |
| gsm | -- | gaussian smooth. |
| log | -- | take logarithm of spectra. |
| mul | -- | multiply spectra. |
| optsub | -- | optimum subtraction. |
| smear | -- | smear spectrum. |
| sub | -- | subtract spectra. |