# This is an example input file for SPIN. Anything after # is a comment
# and is ignored, as are blank lines.

3                            # 1st non-blank line is number of spins
P    100                     # P for ppm, followed by spectrometer freq in MHz
                             # otherwise H for Hz

1.7   3.3    5.2             # frequencies in ppm if P, in Hz if H

2.2  7.5                     # J12, J13, ..... couplings in Hz
14.4                         # J23, ...
                             # more lines starting with J34, ....
                             # as required. Zero couplings must be
                             # explicitly entered