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version 1.1, 2003/01/24 22:32:08 version 1.9, 2011/12/02 18:04:11
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 \section*{Physical Units Accepted by LON-CAPA}  \section*{Physical Units Accepted by LON-CAPA}
 The following subsections show the physical units that LON-CAPA accepts.   The following subsections show the physical units that LON-CAPA accepts. 
 The symbols must be used when entering the units, for example {}``35 kg''.  The symbols must be used when entering the units, for example {}``35 kg''.
   
   Note that compound units are formed by using *, / and \^{}. For example, an acceleration might
   be in terms of ``m/s\^{}2'' or meters per second squared. This could also be expressed as``m/s/s''.
   Units of Newton-meters (for torque) would be entered as ``N*m''. Parentheses may be used to guarantee
   the correct sense of the unit. Kilometers per Ampere-hour could be written as ``km/(A*hr)'' or
   ``km/A/hr'' but not ``km/A*hr''. The last option would be interpreted as kilometer times hours per Ampere.
   
   LON-CAPA will automatically perform some conversions between units of the same dimension
   when units are provided for a problem.
   You can provide an answer of ``1.45 km'' for a distance.
    If the computer expects the answer in cm, it will convert your answer before comparing
   against the numerical solution.
   
   Please note that if your units are inappropriate, the computer has no way of checking
   the appropriateness of your answer.  If units are required, only once appropriate
   units are provided will the system check your numerical answer.
   
 \subsection*{Base Units}  \subsection*{Base Units}
 \begin{verbatim}  \begin{verbatim}
 # name      symbol     comment  # name      symbol     comment
Line 13  ampere          A      # electric curren Line 30  ampere          A      # electric curren
 kelvin          K      # thermodynamic temperature  kelvin          K      # thermodynamic temperature
 mole            mol    # amount of substance  mole            mol    # amount of substance
 candela         cd     # luminous intensity  candela         cd     # luminous intensity
   decibel         dB     # log of pressure amplitude
 \end{verbatim}  \end{verbatim}
 \subsection*{Prefixes}  \subsection*{Prefixes}
 \begin{verbatim}  \begin{verbatim}
Line 27  giga             G         10^9 Line 45  giga             G         10^9
 mega             M         10^6  mega             M         10^6
 kilo             k         10^3  kilo             k         10^3
 hecto            h         10^2  hecto            h         10^2
   deca             D         10^1
   
 deci             d         10^-1  deci             d         10^-1
 centi            c         10^-2  centi            c         10^-2
Line 45  yocto            y         10^{-24} Line 64  yocto            y         10^{-24}
 # name       symbol    comment  # name       symbol    comment
   
 gram            g      # mass  gram            g      # mass
 hour            hr     # time  
 minute          min    # time  minute          min    # time
   hour            hr     # time
   hour            h      # time
 day             day    # time  day             day    # time
   day             days   # time
 year            yr     # time  year            yr     # time
 pound           lb     # mass  pound           lb     # mass
 ounce           oz     # mass  ounce           oz     # mass
Line 79  ohm             ohm    # electric resist Line 100  ohm             ohm    # electric resist
 ohm             ohms   # electric resistance  ohm             ohms   # electric resistance
 ohm             Ohm    # electric resistance  ohm             Ohm    # electric resistance
 ohm             Ohms   # electric resistance  ohm             Ohms   # electric resistance
   mho             mho    # electric conductance
   mho             mhos   # electric conductance
   mho             Mho    # electric conductance
   mho             Mhos   # electric conductance
 siemens         S      # electric conductance  siemens         S      # electric conductance
 farad           F      # electric capacitance  farad           F      # electric capacitance
 tesla           T      # magnetic flux density  tesla           T      # magnetic flux density
Line 90  steradian       sr     # solid angle Line 115  steradian       sr     # solid angle
 lumen           lm     # luminous flux  lumen           lm     # luminous flux
 lux             lx     # illuminance  lux             lx     # illuminance
 becquerel       Bq     # activity (radioactive)  becquerel       Bq     # activity (radioactive)
   curie           Ci     # activity (radioactive)
 gray            Gy     # absorbed dose (of radiation)  gray            Gy     # absorbed dose (of radiation)
 sievert         Sv     # dose equivalent (dose equivalent index)  sievert         Sv     # dose equivalent (dose equivalent index)
 astroUnit       AU     # mean distance earth to sun  astroUnit       AU     # mean distance earth to sun
   celcius         degC   # multiplicatively OK
   fahrenheit degF   # multiplicatively OK
   molarity        M      # chemisty
   amu             amu    # atomic mass unit
   amu             u      # atomic mass unit
   lightspeed      c      # speed of light
   cubiccentimeter cc     # cubic centimeter
   electroncharge  e      # elementary charge
   hbar            hbar   # Planck constant
   milesperhour    mph    # miles per hour
   rpm             rpm    # rounds per minute
   rpm             rpms   # rounds per minute
   parsec          pc     # parsec
 \end{verbatim}  \end{verbatim}
 \subsection*{Interpretation}  \subsection*{Interpretation}
 The coded units are interpreted in the order of basic unit,   The coded units are interpreted in the order of basic unit, 
Removed from v.1.1  
changed lines
  Added in v.1.9

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