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1.1 ! root 1: .if n .ds / / ! 2: .if t .ds / \z/\h'\w'*'u' ! 3: .TH UNITS 1 "18 January 1983" ! 4: .SH NAME ! 5: units \- conversion program ! 6: .SH SYNOPSIS ! 7: .B units ! 8: .SH DESCRIPTION ! 9: .I Units ! 10: converts quantities expressed ! 11: in various standard scales to ! 12: their equivalents in other scales. ! 13: It works interactively in this fashion: ! 14: .PP ! 15: .I " You have:" ! 16: inch ! 17: .br ! 18: .I " You want:" ! 19: cm ! 20: .br ! 21: .I " * 2.54000e+00 ! 22: .br ! 23: .I " \*/ 3.93701e\-01 ! 24: .PP ! 25: A quantity is specified as a multiplicative combination of ! 26: units optionally preceded by a numeric multiplier. ! 27: Powers are indicated by suffixed positive integers, ! 28: division by the usual sign: ! 29: .PP ! 30: .I " You have:" ! 31: 15 pounds force/in2 ! 32: .br ! 33: .I " You want:" ! 34: atm ! 35: .br ! 36: .I " * 1.02069e+00" ! 37: .br ! 38: .I " \*/ 9.79730e\-01" ! 39: .PP ! 40: .I Units ! 41: only does multiplicative scale changes. ! 42: Thus it can convert Kelvin to Rankine, but not Centigrade to ! 43: Fahrenheit. ! 44: Most familiar units, ! 45: abbreviations, and metric prefixes are recognized, ! 46: together with a generous leavening of exotica ! 47: and a few constants of nature including: ! 48: .PP ! 49: .nf ! 50: pi ratio of circumference to diameter ! 51: c speed of light ! 52: e charge on an electron ! 53: g acceleration of gravity ! 54: force same as g ! 55: mole Avogadro's number ! 56: water pressure head per unit height of water ! 57: au astronomical unit ! 58: .PP ! 59: .fi ! 60: `Pound' is a unit of ! 61: mass. ! 62: Compound names are run together, e.g. `lightyear'. ! 63: British units that differ from their US counterparts ! 64: are prefixed thus: `brgallon'. ! 65: Currency is denoted `belgiumfranc', `britainpound', ... ! 66: .PP ! 67: For a complete list of units, `cat /usr/lib/units'. ! 68: .SH FILES ! 69: /usr/lib/units ! 70: .SH BUGS ! 71: Don't base your ! 72: financial plans on the currency conversions.
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