If you're talking about the ones on Page 47, (Spectral Density etc) they look like they are from old subject 103. They're definitely not in CT8.
If they are not in CT6, (time series wasn't in 106 at all) I suspect they got rid of them as their relevance to becoming an actuary is probably fairly limited and they probably sent the shivers down enough students for many to defer taking the subject until it became CT4 and such material was sent to the great actuarial educational graveyard in the sky.
If anyone knows if they appear in any of the STs, let us know so the subject can be avoided!
Last edited by a moderator: Jan 10, 2006