Robert Simson was a Scottish mathematician best known for the Simson line of a triangle, even though he was not the first discoverer of it. He was born in West Kilbride, Ayrshire, on 14 October 1687 and died in Glasgow on 1 October 1768. He spent his career at the University of Glasgow and restored works of the ancient Greek geometers, and his name is on the Simson line theorem, on a proof of Cassini's identity for Fibonacci numbers, and on a statement of the external angle bisector result.
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Source Robert Simson, Biography (MacTutor History of Mathematics)
Proofs Credited
Source Angle Bisector Theorem (Wikipedia)
Source Cassini and Catalan identities - Wikipedia
Source Simson line - Wikipedia
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Source Robert Simson, Biography (MacTutor History of Mathematics)SummaryQuote, Summary
Robert Simson was a Scottish mathematician best known for the Simson line of a triangle, even though he was not the first discoverer of it.
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1. Robert Simson, Biography (MacTutor History of Mathematics)
SummaryQuote, Summary
Robert Simson was a Scottish mathematician best known for the Simson line of a triangle, even though he was not the first discoverer of it.
Simson line - Wikipedia
Proofs Credited: Simson Line Theorem, LeadQuote, Proofs Credited: Simson Line Theorem, Lead
The line through these points is the Simson line of P, named for Robert Simson
Cassini and Catalan identities - Wikipedia
Proofs Credited: Cassini and Catalan Identities, LeadQuote, Proofs Credited: Cassini and Catalan Identities, Lead
Cassini's formula was discovered in 1680 by Giovanni Domenico Cassini, then director of the Paris Observatory, and independently proven by Robert Simson (1753)
Angle Bisector Theorem (Wikipedia)
Wikimedia FoundationProofs Credited: Angle Bisector Theorem, LeadQuote, Proofs Credited: Angle Bisector Theorem, Lead
According to Heath (1956, p. 197 (vol. 2)), the corresponding statement for an external angle bisector was given by Robert Simson who noted that Pappus assumed this result without proof
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