TY - JOUR T1 - A Memoir on the Single and Double Theta-Functions JF - Philosophical Transactions of the Royal Society of London (1776-1886) VL - 171 SP - 897 EP - 1002 PY - 1880/01/01/ UR - http://dx.doi.org/10.1098/rstl.1880.0021 M3 - doi:10.1098/rstl.1880.0021 AU - Cayley, A. ER -