Decades: 1270s 1280s 1290s 1300s 1310s - 1320s - 1330s 1340s 1350s 1360s 1370s
Years: 1321 1322 1323 1324 1325 - 1326 - 1327 1328 1329 1330 1331
Births
Deaths
... computing roots numerically, the usual form of the quadratic formula is not ideal. See Loss of significance for details. Derivation The quadratic formula is derived by ...