Support arbitrary precision in the distbbp example
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Key: MAPREDUCE-1923
URL: https://issues.apache.org/jira/browse/MAPREDUCE-1923
Project: Hadoop Map/Reduce
Issue Type: Improvement
Components: examples
Reporter: Tsz Wo (Nicholas), SZE
Assignee: Tsz Wo (Nicholas), SZE
Priority: Minor
The precision obtained by _distbbp_ is limited by Java {{double}} (IEEE 754
64-bit), which has machine epsilon e=2^(-53). When it is used to compute the
10^15 th bit of π, only 26-bit precision with 99.9999998% confident is
obtained. (Will provide the error analysis later.) It would be great if it
supports arbitrary precision arithmetics.
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