Guru
Joined: 05/02/2015
Location: AustraliaPosts: 669
| Posted: 04:41am 30 May 2022 |
Pete.
sin S + sin I = 2 sin((S+T)/2)cos((S-T)/2)
etc.
It's the sort of thing that we were expected to remember at uni. and for some reason "S&T formulae" has stayed with me.
I had to look it up
I do remember 1955 and trying to remember OHMs LAW.
It is a bit sad that all that maths has gone because I never used it other than to pass exams.
But I wouldn't have missed it for quids.
Peter(B)