XSPEC> thl 6.4,.34,7.1,20.,,,.015 ! Calculate the expected equivalent width for a line at 6.4 keV with a fluorescent yield of 34%. The absorption edge is integrated from 7.1 keV to 20. keV in 200 steps. The maximum depth is .015.Don't forget to read the response file in again if you want to do further work on the same data.
XSPEC> thleqw ,,,,,,100 ! As before, but with 100 steps
XSPEC> thleqw ! As before.