UNITS
   Measurement units and multiplier prefixes

DESCRIPTION

 +------+--------+----------------+-------------------------------+-----+
 |Symbol|  Type  | Name           | Quantity                      |     |
 +------+--------+----------------+-------------------------------+-----+
 |  A   |  unit  | ampere         | current                       |     |
 |  A   | prefix |                |                               |     |
 |  a   |  unit  | are            | area                          |     |
 |  a   | prefix | atto           | x10^-18                       |     |
 +------+--------+----------------+-------------------------------+-----+
 |  B   |  unit  | byte           | memory or data                |     |
 |  B   | prefix |                |                               |     |
 |  Bq  |  unit  | becquerel      | radiocative activity          |     |
 |  b   |  unit  | bit            | memory or data                |     |
 |  b   |  unit  | barn           | area                          |     |
 |  b   | prefix |                |                               |     |
 |  bar |  unit  | bar            | pressure                      |     |
 | baud |  unit  | baud           | data transmission speed       | b/s |
 +------+--------+----------------+-------------------------------+-----+
 |  C   |  unit  | coulumb        | electric charge               |     |
 |  C   | prefix |                |                               |     |
 |  C  |  unit  | degree Celcius | temperature                   |     |
 |  Ci  |  unit  | curie          | radiocative activity          |     |
 |  c   |  unit  |                |                               |     |
 |  c   | prefix | centi          | x10-2, x0.01                  |     |
 |  cd  |  unit  | candela        | luminous intensity            |     |
 +------+--------+----------------+-------------------------------+-----+
 |  D   |  unit  |                |                               |     |
 |  D   | prefix |                |                               |     |
 |  d   |  unit  | day            | time                          |     |
 |  d   | prefix | deci           | x10^-1, x0.1                  |     |
 |  da  | prefix | deka           | x10^1, x10                    |     |
 +------+--------+----------------+-------------------------------+-----+
 |  E   |  unit  |                |                               |     |
 |  E   | prefix | exa            | x10^18.                       |     |
 |  e   |  unit  |                |                               |     |
 |  e   | prefix |                |                               |     |
 |  eV  |  unit  | electronvolt   | electromotive force           |     |
 +------+--------+----------------+-------------------------------+-----+
 |  F   |  unit  | farad          | capacitance                   |     |
 |  F   | prefix |                |                               |     |
 |  f   |  unit  |                |                               |     |
 |  f   | prefix | femto          | x10^-15.                      |     |
 +------+--------+----------------+-------------------------------+-----+
 |  G   |  unit  | gigabyte       | memory storage size           |     |
 |      |        |                | 2^10M, 1024M, 2^20K, 1048576K |     |
 |      |        |                | 2^30 bytes, 1073741824 bytes  |     |
 |  G   | prefix | giga           | x10^9, x1,000,000,000         |     |
 |  Gy  |  unit  | gray           | absorbed dose                 |     |
 |  g   |  unit  | gram           | mass                          |     |
 |  g   | prefix |                |                               |     |
 +------+--------+----------------+-------------------------------+-----+
 |  H   |  unit  | henry          | inductance                    |     |
 |  H   | prefix |                |                               |     |
 |  Hz  |  unit  | Hertz          | frequency                     |     |
 |  h   | prefix | hecto          | x10^2, x100                   |     |
 |  h   |  unit  | hour           | time                          |     |
 |  ha  |  unit  | hectare        | area                          |     |
 +------+--------+----------------+-------------------------------+-----+
 |  I   |  unit  |                |                               |     |
 |  I   | prefix |                |                               |     |
 |  i   |  unit  |                |                               |     |
 |  i   | prefix |                |                               |     |
 +------+--------+----------------+-------------------------------+-----+
 |  J   |  unit  | joule          | energy/work                   |     |
 |  J   | prefix |                |                               |     |
 |  j   |  unit  |                |                               |     |
 |  j   | prefix |                |                               |     |
 +------+--------+----------------+-------------------------------+-----+
 |  K   |  unit  | kilobyte       | memory storage size           |     |
 |      |        |                | 2^10 bytes, 1024 bytes        |     |
 |  K   |  unit  | kelvin         | temperature difference        |     |
 |  K   | prefix |                |                               |     |
 |  k   |  unit  |                |                               |     |
 |  k   | prefix | kilo           | x10^3, x1000                  |     |
 |  kat |  unit  | katal          | catalytic activity            |     |
 +------+--------+----------------+-------------------------------+-----+
 |  L   |  unit  | litre          | volume                        |     |
 |  L   | prefix |                |                               |     |
 |  l   |  unit  | litre          | volume                        |     |
 |  l   | prefix |                |                               |     |
 |  lm  |  unit  | lumen          | luminous flux                 |     |
 |  lx  |  unit  | lux            | illuminance                   |     |
 +------+--------+----------------+-------------------------------+-----+
 |  M   |  unit  | megabyte       | memory storage size           |     |
 |      |        |                | 2^10K, 1024K                  |     |
 |      |        |                | 2^20 bytes, 1048576 bytes     |     |
 |  M   |  unit  | molarity       | molecular quantity            |     |
 |  M   | prefix | mega           | x10^6, x1000000               |     |
 |  m   |  unit  | metre          | distance                      |     |
 |  m   | prefix | milli          | 10^-3, x0.001                 |     |
 |  min |  unit  | minute         | time                          |     |
 |  mol |  unit  | mole           | amount of substance           |     |
 +------+--------+----------------+-------------------------------+-----+
 |  N   |  unit  | newton         | force                         |     |
 |  N   | prefix |                |                               |     |
 |  Np  |  unit  | neper          |                               |     |
 |  n   |  unit  |                |                               |     |
 |  n   | prefix | nano           | x10^-9                        |     |
 +------+--------+----------------+-------------------------------+-----+
 |  O   |  unit  |                |                               |     |
 |  O   | prefix |                |                               |     |
 |  o   |  unit  |                |                               |     |
 |  o   | prefix |                |                               |     |
 +------+--------+----------------+-------------------------------+-----+
 |  P   |  unit  |                |                               |     |
 |  P   | prefix | peta           | x10^15                        |     |
 |  Pa  |  unit  | pascal         | pressure                      |     |
 |  p   |  unit  |                |                               |     |
 |  p   | prefix | pico           | x10^-12                       |     |
 +------+--------+----------------+-------------------------------+-----+
 |  Q   |  unit  |                |                               |     |
 |  Q   | prefix |                |                               |     |
 |  q   |  unit  |                |                               |     |
 |  q   | prefix |                |                               |     |
 +------+--------+----------------+-------------------------------+-----+
 |  R   |  unit  | ohm            | resistance, when the typeface |     |
 |      |        |                | cannot give the correct symbol|     |
 |      |        |                |  (omega)                     |     |
 |  R   |  unit  | roentgen       | charge-mass                   |     |
 |  R   | prefix |                |                               |     |
 |  r   |  unit  |                |                               |     |
 |  r   | prefix |                |                               |     |
 |  rad |  unit  | radian         | plane angle                   |     |
 |  rad |  unit  | rad            | radioactive activity          |     |
 |  rem |  unit  |                |                               |     |
 +------+--------+----------------+-------------------------------+-----+
 |  S   |  unit  | siemens        | electrical conductance        |     |
 |  S   | prefix |                |                               |     |
 |  Sv  |  unit  | sievert        | dose equivalent               |     |
 |  s   |  unit  | second         | time                          |     |
 |  s   | prefix |                |                               |     |
 |  sr  |  unit  | steradian      | solid angle                   |     |
 +------+--------+----------------+-------------------------------+-----+
 |  T   |  unit  | tesla          | magnetic flux density         |     |
 |  T   | prefix | tera           | x10^12                        |     |
 |  t   |  unit  | tonne          | mass                          |     |
 |  t   | prefix |                |                               |     |
 +------+--------+----------------+-------------------------------+-----+
 |  U   |  unit  |                |                               |     |
 |  U   | prefix |                |                               |     |
 |  u   |  unit  | unified atomic mass unit | mass                |     |
 |  ua  |  unit  | astronomical unit        | distance            |     |
 |  u   | prefix | micro          | x10^-6, x0.000001             |     |
 |      |        |                | used when the typeface cannot |     |
 |      |        |                | give the correct symbol  (mu)|     |
 +------+--------+----------------+-------------------------------+-----+
 |  V   |  unit  |  volt          | electromotive differential    |     |
 |  V   | prefix |                |                               |     |
 |  v   |  unit  |                |                               |     |
 |  v   | prefix |                |                               |     |
 +------+--------+----------------+-------------------------------+-----+
 |  W   |  unit  | watt           | power                         |     |
 |  W   | prefix |                |                               |     |
 |  Wb  |  unit  | weber          | magnetic flux                 |     |
 |  w   |  unit  |                |                               |     |
 |  w   | prefix |                |                               |     |
 +------+--------+----------------+-------------------------------+-----+
 |  X   |  unit  |                |                               |     |
 |  X   | prefix |                |                               |     |
 |  x   |  unit  |                |                               |     |
 |  x   | prefix |                |                               |     |
 +------+--------+----------------+-------------------------------+-----+
 |  Y   |  unit  |                |                               |     |
 |  Y   | prefix | yotta          | x10^24                        |     |
 |  y   |  unit  |                |                               |     |
 |  y   | prefix | yocto          | x10-24                        |     |
 +------+--------+----------------+-------------------------------+-----+
 |  Z   |  unit  |                |                               |     |
 |  Z   | prefix | zetta          | x10^21                        |     |
 |  z   |  unit  |                |                               |     |
 |  z   | prefix | zepto          | x10^-21                       |     |
 +------+--------+----------------+-------------------------------+-----+
 |     | prefix | micro          | x10^-6, x0.000001             |     |
 |     |  unit  | ohm            | resistance                    |     |
 |     |  unit  | angstrom       | length                        |     |
 +------+--------+----------------+-------------------------------+-----+