TY - JOUR T1 - On the Geometrical Representation of the Powers of Quantities, Whose Indices Involve the Square Roots of Negative Quantities JF - Philosophical Transactions of the Royal Society of London (1776-1886) VL - 119 SP - 339 EP - 359 PY - 1829/01/01/ UR - http://dx.doi.org/10.1098/rstl.1829.0031 M3 - doi:10.1098/rstl.1829.0031 AU - Warren, J. ER -