Two IBM researchers, with the assistance of the present bloggers (Bailey and Borwein), have calculated binary digits of pi-squared beginning at the 60 trillionth binary digit. In addition, they calculated ternary (base-3) digits of pi-squared, beginning at the 60 trillionth digit, and binary digits of Catalan’s constant, beginning at the 120 trillionth digit. Other researchers have previously calculated binary digits of pi itself, beginning at the two quadrillionth binary digit.
These calculations would have taken a single computer processor unit (CPU) 1,500 years to calculate, but the researchers managed to complete this work in just a few months on IBM’s
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