21 Oct
2013
21 Oct
'13
10:24 a.m.
It appears that at least the "hex lattice" formula is incorrect, grrrr... (so, do not bother). Also I got the papers now. Sorry for the noise, jj * Joerg Arndt <arndt@jjj.de> [Oct 21. 2013 10:49]:
Pick's theorem (cf. http://en.wikipedia.org/wiki/Pick's_theorem): [...]