Decades: 1080s BC 1070s BC 1060s BC 1050s BC 1040s BC - 1030s BC - 1020s BC 1010s BC 1000s BC 990s BC 980s BC
Significant People
... – 4ac is called the discriminant of the quadratic equation, because it discriminates between three qualitatively different cases: If the discriminant is zero, then ...