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Annotation of loncom/homework/capa.units, revision 1.5

1.5     ! albertel    1: # The LearningOnline Network with CAPA
        !             2: # Physical Unit definitions
        !             3: #
        !             4: # $Id: gplheader.pl,v 1.1 2001/11/29 18:19:27 www Exp $
        !             5: #
        !             6: # Copyright Michigan State University Board of Trustees
        !             7: #
        !             8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
        !             9: #
        !            10: # LON-CAPA is free software; you can redistribute it and/or modify
        !            11: # it under the terms of the GNU General Public License as published by
        !            12: # the Free Software Foundation; either version 2 of the License, or
        !            13: # (at your option) any later version.
        !            14: #
        !            15: # LON-CAPA is distributed in the hope that it will be useful,
        !            16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
        !            17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
        !            18: # GNU General Public License for more details.
        !            19: #
        !            20: # You should have received a copy of the GNU General Public License
        !            21: # along with LON-CAPA; if not, write to the Free Software
        !            22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
        !            23: #
        !            24: # /home/httpd/html/adm/gpl.txt
        !            25: #
        !            26: # http://www.lon-capa.org/
        !            27: #
1.1       albertel   28: # 
                     29: # ======================= Unit section =============
                     30: # Base Unit
                     31: # name      symbol     comment
                     32: 
                     33: << Base Unit >>
                     34: 
                     35: meter           m      # length
                     36: kilogram        kg     # mass
                     37: second          s      # time
                     38: ampere          A      # electric current
                     39: kelvin          K      # thermodynamic temperature
                     40: mole            mol    # amount of substance
                     41: candela         cd     # luminous intensity
                     42: 
                     43: #   Prefix     symbol     factor
                     44: << Prefix >>
                     45: 
                     46: yotta            Y         10^{24}
                     47: zetta            Z         10^{21}
                     48: exa              E         10^{18}
                     49: peta             P         10^{15}
                     50: tera             T         10^{12}
                     51: giga             G         10^9
                     52: mega             M         10^6
                     53: kilo             k         10^3
                     54: hecto            h         10^2
                     55: 
                     56: deci             d         10^-1
                     57: centi            c         10^-2
                     58: milli            m         10^-3
                     59: micro            u         10^-6
                     60: nano             n         10^-9
                     61: pico             p         10^{-12}
                     62: femto            f         10^{-15}
                     63: atto             a         10^{-18}
                     64: zepto            z         10^{-21}
                     65: yocto            y         10^{-24}
                     66: 
                     67: 
                     68: 
                     69: 
                     70: # Derived Unit
                     71: # name       symbol     unit          comment
                     72: # name must be in oneword
                     73: <<Derived Unit>>
                     74: 
                     75: gram            g      0.001 kg      # mass
1.3       albertel   76: day             day    24.0 hr       # time
                     77: year            yr     365.24 day    # time
1.1       albertel   78: hour            hr     3600. s       # time
                     79: minute          min    60 s          # time
                     80: pound           lb     0.45359237 kg # mass
                     81: ounce           oz     1.77185E-3 kg # mass
                     82: inch            in     2.54 cm       # length
                     83: foot            ft     12 in         # length
                     84: mile            mi     5280 ft       # length
                     85: yard            yd     0.9144 m      # length
                     86: nautical_mile   n_mi   6080 ft       # length, nautical mile (UK)
                     87: rood            rood   1210 yd^2     # area, rood
                     88: acre            acre   4840 yd^2     # area, acre
                     89: hertz           Hz     1/s           # frequency
1.2       albertel   90: litre           L      10^3*cm^3     # volume
1.1       albertel   91: newton          N      m*kg/s^2      # force
                     92: pound_force     lbf    4.44822 N     # force
                     93: dyne            dyn    1E-5 N        # force
                     94: pascal          Pa     N/m^2           # pressure, stress
                     95: bar             bar    1E5 Pa          # pressure
                     96: mmHg            mmHg   1.33322E2 Pa    # pressure, millimeter of mercury
                     97: torr            torr   1 mmHg          # pressure
                     98: atm             atm    760 torr        # standard atmosphere
                     99: joule           J      N*m             # energy, work, heat
                    100: electronvolt    eV     1.6021892E-19 J # energy
                    101: calorie         cal    4.1868 J        # energy
                    102: Btu             Btu    1.05506E3 J     # energy
                    103: watt            W      J/s             # power, radiant flux
                    104: coulomb         C      A*s             # electric charge
                    105: volt            V      J/C           # electric potential, electromotive force
                    106: ohm             ohm    V/A           # electric resistance, use this in /ANS
                    107: ohm             ohms   V/A           # electric resistance
                    108: ohm             Ohm    V/A           # electric resistance
                    109: ohm             Ohms   V/A           # electric resistance
                    110: siemens         S      1/Ohm         # electric conductance
                    111: farad           F      C/V           # electric capacitance
                    112: tesla           T      V*s/m^2       # magnetic flux density
                    113: weber           Wb     V*s           # magnetic flux
                    114: henry           H      V*s/A         # inductance
                    115: radian          rad    m/m            # plane angle
                    116: degree          deg    1.745329E-2 rad # plane angle (Pi rad=180 deg)
                    117: steradian       sr     m^2 /m^2        # solid angle
                    118: lumen           lm     cd*sr         # luminous flux
                    119: lux             lx     cd*sr/m^2     # illuminance
                    120: becquerel       Bq     1/s           # activity (radioactive)
                    121: gray            Gy     J/kg          # absorbed dose (of radiation)
                    122: sievert         Sv     J/kg          # dose equivalent (dose equivalent index)
                    123: astroUnit       AU     1.49598E11 m  # mean distance earth to sun
1.4       albertel  124: celcius         degC   1 K           # multiplicatively OK
                    125: farenheight     degF   .5555555555 K # multiplicatively OK
1.1       albertel  126: 
                    127: