It's possible to use the distribution of bright stars across the night sky to deduce de·duce
tr.v. de·duced, de·duc·ing, de·duc·es
1. To reach (a conclusion) by reasoning.
2. To infer from a general principle; reason deductively: a numerical value of pi ([pi]) that comes within 0.5 percent of its exact value (SN: 5/20/95, p.319). But determining pi--the ratio of the circumference of a circle to its diameter--to billions of decimal places decimal place
The position of a digit to the right of a decimal point, usually identified by successive ascending ordinal numbers with the digit immediately to the right of the decimal point being first: requires mathematical ingenuity and tremendous computer power.
Earlier this month, Yasumasa Kanada and his coworkers at the University of Tokyo “Todai” redirects here. For the restaurant called Todai, see Todai (restaurant).
The University of Tokyo (東京大学 announced that they had calculated pi to 3.22 billion decimal places, beating the old record of 2.26 billion digits (SN: 8/24/91, p.127). The researchers checked their result by using two different formulas to compute pi, requiring more than 36 hours to complete each calculation on a supercomputer.
Meanwhile, mathematicians Mathematicians by letter: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z See also
Such calculations of pi involve much more than setting a record. The Chudnovskys, for example, have developed novel mathematical formulas for computing pi efficiently and methods for checking the results to ensure that the digits are correct. Computing pi to a large number of decimal places also serves as an excellent test of how well a computer functions. The Chudnovskys have been able to use their pi-tested computer to complete a variety of mathematical calculations linked to the study of certain types of differential equations.