The notion of a positron weapon remains the stuff of science fiction.

For a prime number p, the pᵗʰ cyclotomic polynomial is xᵖ-1/x-1=xᵖ⁻¹+xᵖ⁻²+...+x²+x+1.

Speaking in the eastern port city of Suao for the launch of the Ta Chiang, the first mass production ship of the Tuo Chiang-class, Tsai said the vessel and the new minelayer would deter attacks and showcased Taiwan's research and development ability.

But Sophia's mother was not the woman to brook defiance. After a few moments' vain remonstrance her husband complied. His manner and appearance were suggestive of a satiated sea-lion.