PTAS or Ptas may refer to: * Polynomial-time approximation scheme, an approximation algorithm in computer science * Pesetas, Spanish currency *

PTAS reduction In computational complexity theory, a PTAS reduction is an approximation-preserving reduction that is often used to perform reductions between solutions to optimization problems. It preserves the property that a problem has a polynomial time approxi ...

, an approximation-preserving reduction in computational complexity theory *

Preferential trading area A preferential trade area (also preferential trade agreement, PTA) is a trading bloc that gives preferential access to certain products from the participating countries. This is done by reducing tariffs but not by abolishing them completely. It ...

, another term for a trade bloc

See also