Decades: 1360s BC 1350s BC 1340s BC 1330s BC 1320s BC - 1310s BC - 1300s BC 1290s BC 1280s BC 1270s BC 1260s BC
Significant People
... there is a repeated solution x, and this solution is real. (Geometrically, this means that the parabola described by the quadratic equation touches the x-axis in a ...