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It was conceived by the French mathematician Rene Descartes.
It's a system of plotting straight lines and curves on the Cartesian plane which consist of a horizontal x number line axis and a vertical y number line axis. Both axes are perpendicular to each other at the point of origin that has the coordinates of (0, 0)
Adam - father of Cain and Abel Isaac - father of Jacob and Esau Abraham - father of Isaac Joseph of Nazareth - father of Jesus Jacob - father of Joseph Zechariah - father of John the Baptist Jesse - father of David Joseph (son of Jacob) - father of Mannaseh David - father of Solomon
Hipparchus is the father of trigonometry.
His father was a merchant.