How computers get it wrong: 2+2 = 5

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When lives depend on calculations, human error can kill.  From the early days of computing, one problem has been that they generally work with a fixed number of digits, creating rounding errors.  Chaos Theory has shown new ways in which computer arithmetic can give misleading results.  Such problems are not just theoretical - legend has it that one programmer became rich transferring the fractions of a penny lost in rounding errors into his own account!

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This event was on Mon, 04 Mar 2013


Professor Tony Mann

Visiting Professor of Computing Mathematics

Professor Tony Mann has taught mathematics and computing at the University of Greenwich for over twenty years. He was President of the British Society for...

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