Enrico Delfini Wehr (@enricodelfiniw1) 's Twitter Profile
Enrico Delfini Wehr

@enricodelfiniw1

ID: 1622106678

calendar_today26-07-2013 05:39:53

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Physics In History (@physinhistory) 's Twitter Profile Photo

The symbol for pi (π) was first used by William Jones, a Welsh mathematician, in 1706. In his work titled "Synopsis Palmariorum Matheseos", Jones needed a concise way to represent the ratio of a circle's circumference to its diameter, which was already known to be a constant.