--- definitions.units 2023-01-04 18:22:06.602713513 +0200 +++ definitions.units.patched 2023-01-04 19:54:54.681679346 +0200 @@ -230,7 +230,7 @@ # equator to a pole. h_SI 6.62607015e-34 -h 6.62607015e-34 J s # Planck constant (exact) +h 6.62607015e-34 (m^2*kg/s^2) s # Planck constant (exact) kg ! # The kilogram, symbol kg, is the SI unit of mass. It is kilogram kg # defined by taking the fixed numerical value of the Planck @@ -279,7 +279,7 @@ # https://en.wikipedia.org/wiki/Kibble_balance k_SI 1.380649e-23 -boltzmann 1.380649e-23 J/K # Boltzmann constant (exact) +boltzmann 1.380649e-23 (m^2*kg/s^2)/K # Boltzmann constant (exact) k boltzmann K ! # The kelvin, symbol K, is the SI unit of thermodynamic @@ -322,7 +322,7 @@ # depend directly on temperature. e_SI 1.602176634e-19 -e 1.602176634e-19 C # electron charge (exact) +e 1.602176634e-19 A s # electron charge (exact) A ! # The ampere, symbol A, is the SI unit of electric current. ampere A # It is defined by taking the fixed numerical value of the @@ -425,7 +425,9 @@ # A primitive non-SI unit # -bit ! # Basic unit of information (entropy). The entropy in bits +B ! +byte B +bit 1|8 B # Basic unit of information (entropy). The entropy in bits # of a random variable over a finite alphabet is defined # to be the sum of -p(i)*log2(p(i)) over the alphabet where # p(i) is the probability that the random variable takes @@ -442,6 +444,8 @@ # # ########################################################################### +quetta- 1e30 +ronna- 1e27 yotta- 1e24 # Greek or Latin octo, "eight" zetta- 1e21 # Latin septem, "seven" exa- 1e18 # Greek hex, "six" @@ -464,6 +468,8 @@ atto- 1e-18 # Danish-Norwegian atten, "eighteen" zepto- 1e-21 # Latin septem, "seven" yocto- 1e-24 # Greek or Latin octo, "eight" +ronto- 1e-27 +quecto- 1e-30 quarter- 1|4 semi- 0.5 @@ -482,6 +488,8 @@ exbi- 2^60 zebi- 2^70 # Zebi- and yobi- were added in the 2005 ed., yobi- 2^80 # later superseded by ISO/IEC 80000-13:2008. +robi- 2^90 +quebi- 2^100 Ki- kibi Mi- mebi Gi- gibi @@ -490,7 +498,11 @@ Ei- exbi Zi- zebi Yi- yobi +Ri- robi +Qi- quebi +Q- quetta +R- ronna Y- yotta Z- zetta E- exa @@ -505,12 +517,15 @@ c- centi m- milli u- micro # it should be a mu but u is easy to type +mu- micro n- nano p- pico f- femto a- atto z- zepto y- yocto +r- ronto +q- quecto # # Names of some numbers @@ -683,6 +698,14 @@ padm 1e15 shankh 1e17 +# postgresql-unit: Define some units before they are used elsewhere before their original definition +pi 3.14159265358979323846 +π pi +astronomicalunit 149597870700 m # IAU definition from 2012, exact +au astronomicalunit # ephemeris for the above described +m2 m^2 + + ############################################################################# # # # Derived units which can be reduced to the primitive units # @@ -962,7 +985,7 @@ pointangle 1|32 circle # Used for reporting compass readings centrad 0.01 radian # Used for angular deviation of light # through a prism. -mas milli arcsec # Used by astronomers +mas milliarcsec # Used by astronomers seclongitude circle (seconds/day) # Astronomers measure longitude # (which they call right ascension) in # time units by dividing the equator into @@ -1083,8 +1106,8 @@ tempF(x) units=[1;K] domain=[-459.67,) range=[0,) \ (x+(-32)) degF + stdtemp ; (tempF+(-stdtemp))/degF + 32 tempfahrenheit() tempF -degfahrenheit 5|9 degC -degF 5|9 degC +degfahrenheit 5|9 * degC +degF 5|9 * degC degreesrankine degF # The Rankine scale has the @@ -1096,7 +1119,7 @@ tempreaumur(x) units=[1;K] domain=[-218.52,) range=[0,) \ x degreaumur+stdtemp ; (tempreaumur+(-stdtemp))/degreaumur -degreaumur 10|8 degC # The Reaumur scale was used in Europe and +degreaumur 10|8 * degC # The Reaumur scale was used in Europe and # particularly in France. It is defined # to be 0 at the freezing point of water # and 80 at the boiling point. Reaumur @@ -1184,7 +1207,7 @@ # Basic constants -pi 3.14159265358979323846 +#pi 3.14159265358979323846 tau 2 pi phi (sqrt(5)+1)/2 light c @@ -1341,6 +1364,15 @@ H2O50C 0.98807 force gram / cm^3 H2O100C 0.95838 force gram / cm^3 +# moved because ft is used before being defined (and otherwise parsed as femtotonne) +inch 2.54 cm +in inch +inches inch +foot 12 inch +feet foot +ft foot +ft3 ft^3 + # Atomic constants hartree 4.3597447222071e-18 J # Approximate electric potential energy @@ -1715,7 +1747,7 @@ abampere 10 A # Current which produces a force of abamp abampere # 2 dyne/cm between two infinitely -aA abampere # long wires that are 1 cm apart +#aA abampere # long wires that are 1 cm apart abA abampere biot abampere Bi biot @@ -2668,8 +2700,8 @@ # gravitational constant. This is a # fictional year, and doesn't # correspond to any celestial event. -astronomicalunit 149597870700 m # IAU definition from 2012, exact -au astronomicalunit # ephemeris for the above described +#astronomicalunit 149597870700 m # IAU definition from 2012, exact +#au astronomicalunit # ephemeris for the above described # astronomical unit. (See the NASA # site listed above.) GMsun 132712440041.279419 km^3 / s^2 # heliocentric gravitational constant @@ -3003,11 +3035,6 @@ int 3937|1200 ft/m # Convert US Survey measures to int- int # international measures -inch 2.54 cm -in inch -foot 12 inch -feet foot -ft foot yard 3 ft yd yard mile 5280 ft # The mile was enlarged from 5000 ft @@ -3155,6 +3182,7 @@ # Liquid measure usgallon 231 in^3 # US liquid measure is derived from +gallon usgallon gal gallon # the British wine gallon of 1707. quart 1|4 gallon # See the "winegallon" entry below pint 1|2 quart # more historical information. @@ -3656,7 +3684,7 @@ number1can 10 usfloz number2can 19 usfloz -number2.5can 3.5 uscups +number2_5can 3.5 uscups number3can 4 uscups number5can 7 uscups number10can 105 usfloz @@ -4618,10 +4646,10 @@ btu btu_IT # International Table BTU is the default britishthermalunit btu -btu_IT cal_IT lb degF / gram K -btu_th cal_th lb degF / gram K -btu_mean cal_mean lb degF / gram K -btu_15 cal_15 lb degF / gram K +btu_IT cal_IT lb (degF) / gram K +btu_th cal_th lb (degF) / gram K +btu_mean cal_mean lb (degF) / gram K +btu_15 cal_15 lb (degF) / gram K btu_ISO 1055.06 J # Exact, rounded ISO definition based # on the IT calorie quad quadrillion btu @@ -4784,7 +4812,7 @@ # Celsius heat unit: energy to raise a pound of water 1 degC -celsiusheatunit cal lb degC / gram K +celsiusheatunit cal lb (degC) / gram K chu celsiusheatunit # "Apparent" average power in an AC circuit, the product of rms voltage @@ -4842,13 +4870,13 @@ Uvalue 1/Rvalue europeanUvalue watt / m^2 K RSI degC m^2 / W -clo 0.155 degC m^2 / W # Supposed to be the insulance +clo 0.155 * degC m^2 / W # Supposed to be the insulance # required to keep a resting person # comfortable indoors. The value # given is from NIST and the CRC, # but [5] gives a slightly different # value of 0.875 ft^2 degF hr / btu. -tog 0.1 degC m^2 / W # Also used for clothing. +tog 0.1 * degC m^2 / W # Also used for clothing. # Thermal Conductivity of a few materials @@ -5352,8 +5380,8 @@ # to symbols per second. Modern # modems transmit several bits # per symbol. -byte 8 bit # Not all machines had 8 bit -B byte # bytes, but these days most of +#byte 8 bit # Not all machines had 8 bit +#B byte # bytes, but these days most of # them do. But beware: for # transmission over modems, a # few extra bits are used so @@ -6800,7 +6828,7 @@ pa Pa ev eV -hg Hg +#hg Hg oe Oe mh mH rd rod @@ -7182,7 +7210,8 @@ Mag Maz gravity # force Maz Volm kg / oldliter # mass based on water -Tm Tim # Abbreviations +#gross conflict with terameter +#Tm Tim # Abbreviations Gf Grafut Sf Surf Vm Volm @@ -7972,7 +8001,7 @@ ton uston scruple apscruple fluidounce usfluidounce -gallon usgallon +#gallon usgallon bushel usbushel quarter quarterweight cup uscup