All that an intense Internet search revealed to me about Jack E. Volger is that he worked for Hewlett-Packard and, in 1959, developed a set of algorithms called the CORDIC method. I explain what little I know about
these algorithms in a separate node; suffice it to say that this method, which stands for COordinate Rotation DIgital Ccomputer, is used to (quickly) calculate
the standard transcendental functions in most scientific calculators, such as those by Texas Instruments
and Hewlett-Packard.