Diff for /loncom/html/adm/help/tex/Physical_Units.tex between versions 1.3 and 1.9

version 1.3, 2006/09/07 21:25:51 version 1.9, 2011/12/02 18:04:11
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 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  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''.  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  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  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.  ``km/A/hr'' but not ``km/A*hr''. The last option would be interpreted as kilometer times hours per Ampere.
Line 30  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 44  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 62  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 96  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 107  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  celcius         degC   # multiplicatively OK
 farenheight     degF   # multiplicatively OK  fahrenheit degF   # multiplicatively OK
 molarity        M      # chemisty  molarity        M      # chemisty
 amu             amu    # atomic mass unit  amu             amu    # atomic mass unit
 amu             u      # 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, 

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  Added in v.1.9


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