other known units - Maple Help

Other Units

Description

 • The following units are in the Units package.

 Name Symbols Context Alternate Spellings Prefixes brewster standard * brewsters SI talbot standard * talbots lumberg standard * lumbergs strontium_unit standard * strontium_units dozen standard part_per_billion ppb EU parts_per_billion US part_per_million ppm standard parts_per_million

 An asterisk ( * ) indicates the default context, an at sign (@) indicates an abbreviation, and under the prefixes column, SI indicates that the unit takes all SI prefixes, IEC indicates that the unit takes IEC prefixes, and SI+ and SI- indicate that the unit takes only positive and negative SI prefixes, respectively.  Refer to a unit in the Units package by indexing the name or symbol with the context, for example, brewster[standard]; or, if the context is indicated as the default, by using only the unit name or symbol, for example, brewster.
 The units are defined as follows.
 A brewster has the dimension length time squared per mass. It is defined as a square micrometer per newton.
 A talbot has the dimension luminous flux time. It is defined as a lumen second.  It is also known as a lumberg.
 A strontium unit has the dimension inverse time mass. It is defined as $37$ becquerels per kilogram.

Examples

 > $\mathrm{convert}\left('\mathrm{brewster}','\mathrm{dimensions}','\mathrm{base}'\right)$
 $\frac{{\mathrm{length}}{}{{\mathrm{time}}}^{{2}}}{{\mathrm{mass}}}$ (1)
 > $\mathrm{convert}\left(1,'\mathrm{units}','\mathrm{brewster}',\frac{'m'{'s'}^{2}}{'\mathrm{kg}'}\right)$
 $\frac{{1}}{{1000000000000}}$ (2)
 > $\mathrm{convert}\left('\mathrm{talbot}','\mathrm{dimensions}','\mathrm{base}'\right)$
 $\frac{{\mathrm{luminous_intensity}}{}{{\mathrm{length}}}^{{2}}{}{\mathrm{time}}}{{{\mathrm{length}}{}\left({\mathrm{radius}}\right)}^{{2}}}$ (3)
 > $\mathrm{convert}\left(1,'\mathrm{units}','\mathrm{talbot}','\mathrm{lm}''s'\right)$
 ${1}$ (4)
 > $\mathrm{convert}\left('\mathrm{strontium_unit}','\mathrm{dimensions}','\mathrm{base}'\right)$
 $\frac{{1}}{{\mathrm{time}}{}{\mathrm{mass}}}$ (5)
 > $\mathrm{convert}\left(1,'\mathrm{units}','\mathrm{strontium_unit}',\frac{'\mathrm{Bq}'}{'\mathrm{kg}'}\right)$
 ${37}$ (6)