UNITS(1) UNITS(1) NAME units - conversion program SYNOPSIS units [ -v ] [ file ] DESCRIPTION Units converts quantities expressed in various standard scales to their equivalents in other scales. It works interactively in this fashion: you have: inch you want: cm * 2.54 / 0.3937008 A quantity is specified as a multiplicative combination of units and floating point numbers. Operators have the fol- lowing precedence: + - add and subtract * / × ÷ multiply and divide catenation multiply ² ³ ^ exponentiation | divide ( ... ) grouping Most familiar units, abbreviations, and metric prefixes are recognized, together with a generous leavening of exotica and a few constants of nature including: pi,π ratio of circumference to diameter c speed of light e charge on an electron g acceleration of gravity force same as g mole Avogadro's number water pressure head per unit height of water au astronomical unit The `pound' is a unit of mass. Compound names are run together, e.g. `lightyear'. British units that differ from their US counterparts are prefixed thus: `brgallon'. Cur- rency is denoted `belgiumfranc', `britainpound', etc. The complete list of units can be found in /lib/units. A file argument to units specifies a file to be used instead of /lib/units. The -v flag causes units to print its entire database. UNITS(1) UNITS(1) EXAMPLE you have: 15 pounds force/in² you want: atm * 1.020689 / 0.9797299 FILES /lib/units SOURCE /appl/cmd/units.y /appl/cmd/units.b BUGS Since units does only multiplicative scale changes, it can convert Kelvin to Rankine but not Centigrade to Fahrenheit, except that the latter is handled as a special case. Currency conversions are only as accurate as the last time someone updated /lib/units.