USA - 1973
4 functions, Sqr Root
Sign change, Exp. Function,
an SRP of $149.95, this portable slide-rule calculator with scientific notation was the
first with a price comparable to that of basic hand-held calculators. It performed
reciprocals, squares and square roots more quickly and more accurately than classical
slide rules and handled four arithmetic functions, as well.
Part of the permanent collection of the Smithsonian Institution in Washington, D.C."
|Content and photo
provided by Texas Instruments,
and published with the permission of Texas Instruments Incorporated.
X-Number World of Calculators