Xi synonyms

If (f,4) 1 be not a perfect square, and rx, s x be its linear factors, it is possible to express f and 4, in the canonical forms Xi(rx)2+X2(sx)2, 111(rx)2+1.2 (sx) 2 respectively.

Maximilian was compelled to assent to the treaty of Arras in 1482 between the states of the Netherlands and Louis XI.

In his old age he was engaged in incessant conflicts with his Aragonese and Catalan subjects, with Louis XI.

The latter was begun by Henry of Guise in 1578, in place of an older château burnt by Louis XI.

All the Swedish commanders showed remarkable ability, but the chief glory of the day indisputably belongs to Charles XI.