Displaying 1 result from an estimated 1 matches for "encylopedic".
2006 May 17
3
Off topic --- help in locating a source.
...st if you can help me out.
A collaborator of mine found a formula we need, on sheets which he had
photocopied out of a book, some years ago. He cannot remember which
book (he's getting to be as senile and forgetful as I am, poor
bloke!). He thinks it was (and it appears to have been) a large
encylopedic tome devoted to extensive tables of formulae, integrals
and series, and stuff like that.
The formula in question is
oo 1 1 1
SUM --- cos(k*x) = --- ln (----------------) 0 < x < 2*pi .
k=1 k 2 2*(1 - cos(x))
(I.e. the ri...