Person: Dinostratus
Dinostratus was a Greek mathematician who may have used the quadratrix of Hippias to solve the problem of squaring the circle.
Mathematical Profile (Excerpt):
 It is usually claimed that Dinostratus used the quadratrix, discovered by Hippias, to solve the problem of squaring the circle.
 It appears from this quote that Hippias discovered the curve but that it was Dinostratus who was the first to use it to find a square equal in area to a given circle.
 This makes somewhat less convincing the claim that Dinostratus used the quadratrix, discovered by Hippias, to square the circle since Eudemus does not even mention Dinostratus.
 posterity has firmly associated the name of Dinostratus with the quadrature of the circle by means of the quadratrix.
 The second objection relates to Dinostratus's use of the quadratrix to square the circle.
 Dinostratus probably did much more work on geometry but nothing is known of it.
Born about 390 BC, Greece. Died about 320 BC.
View full biography at MacTutor
Tags relevant for this person:
Ancient Greek, Geometry, Origin Greece, Puzzles And Problems
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References
Adapted from other CC BYSA 4.0 Sources:
 Oâ€™Connor, John J; Robertson, Edmund F: MacTutor History of Mathematics Archive