Decades: 1520s BC 1510s BC 1500s BC 1490s BC 1480s BC - 1470s BC - 1460s BC 1450s BC 1440s BC 1430s BC 1420s BC
Significant People
... form of the quadratic formula is not ideal. See Loss of significance for details. Derivation The quadratic formula is derived by the method of completing th ...