Putting a Hex on e^x Recent notes on approximate natural antilogy have not considered indirect formulations for describing e^x. In this note we produce a particular family of very fast, high precision and eminently practical exponential evaluation formulas derived from one such formulation. CACM October, 1961 Feurzeig, W. CA610913 JB March 16, 1978 1:27 PM 281 5 281 281 5 281 281 5 281