Bar (unit) mb (rather than the proper mbar) to denote the millibar. Between 1793 and 1795, the word bar was used for a unit of weight in an early version of the metric system. Atmospheric air pressure is often given in millibars, where standard atmospheric pressure at sea level is defined as 1013.25 mbar, 101.325 kPa, 1.01325 bar, which is about . Despite the millibar not being an SI unit, meteorologists and weather reporters worldwide have long measured air pressure in millibars as the values are convenient. After the advent of SI units, some meteorologists began using hectopascals (symbol hPa) which are
Vector Pascal Vector Pascal Vector Pascal is an open source compiler that extends the Pascal programming language. It is designed to support efficient expression of algorithms using the SIMD model of computation. It imports into Pascal abstraction mechanisms derived from Iverson's APL programming language. In particular it extends all operators to work on vectors of data. The type system is also extended to handle pixels and dimensional analysis. The compiler is implemented in Java. The syntax generally follows that of Turbo Pascal and includes all features of the ISO standard (ISO 7185-1990) except where overridden by Turbo Pascal. Features of Extended Pascal