Contact: Phil Sneiderman
Johns Hopkins University
Caption: Johns Hopkins graduate student Xiang Yang, at right, teamed up with Rajat Mittal, a professor of mechanical engineering, to revamp a "useless" 169-year-old math strategy, making it work up to 200 times faster.
Credit: Will Kirk/JHU
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Related news release: 19th century math tactic gets a makeover -- and yields answers up to 200 times faster