Two mathematicians have proved that a straightforward question—how hard is it to untie a knot?—has a complicated answer.

Chameleon adaptive analog modules from Okika provide preprogrammed, ready-to-use analog functions in a compact 14×11-mm form ...

Rampant mergers and acquisitions are partly responsible for the rush to borrow, but much of the elevated issuance is coming from a rash of new companies entering the Canadian debt market, including ...