Decades: 1640s BC 1630s BC 1620s BC 1610s BC 1600s BC - 1590s BC - 1580s BC 1570s BC 1560s BC 1550s BC 1540s BC
Significant People
... intersect the x-axis at all.) Note that when computing roots numerically, the usual form of the quadratic formula is not ideal. See Loss of significance for ...