pdfion
commented
10 months ago Dear Neil,
I've been prominent if at all by my absence, for which I can apologize and offer my regrets. I have been doing some reading along of the conversations and minutes though. I wish I could do more.
I hope the contact with Ilka Agricola helps too.
Today, as an ex editor, I just offer a typo and a few questions for the Units draft.
Questions
- gigga => giga [what I'm used to]
- dessa => deci [what I'm used to]
- Ω/Ω [duplicate]
- °C/℃ [duplicate]
- acrminute => arcminute
- rod [also pole, perch ?]
- cu ft cu yd => cu ft, cu yd
- °F/℉ [duplicate]
- Å/Å [duplicate]
All the best,
Patrick
On Wed, Oct 11, 2023 at 7:43 PM NSoiffer @.***> wrote:
MathPlayer has a long list of units it accepts. I want to record them, so here they are (mostly in the order they occur). First come the abbreviations followed by the word used for the singular case. SI Units: Prefixes
Y, Z, E, P, T, G, M, k, h, da, d, c, m, µ, n, p, f, a, z, y yotta, zetta, exa, peta, tera, gigga, mega, kilo, hecto, decka dessa, centi, milli, mirco, nano, pico, femto, atto, zepto, yocto Bases
A, cd, K/K, g, m, mol, (s, ″, ", sec) amp, kelvin, gram, meter, mole, second Derived
Bq, C, F, Gy, H, Hz, J, kat, lm, lx, N Ω/Ω, Pa, rad, S, Sv, sr, T, V, W, Wb becquerel, coulomb, farad, gray, henry, hertz, joule, kattel, lumen, lux ohm, pascal, radian, siemens, sievert, sterradion, tesla, tvolt, watt, weber Accepted
amu/u, au/AU, Da, d/dy, dB, °C/℃, °/deg, eV, ha, Hr/h, l/L/ℓ, ′/'/min, arcmin/amin/am/MOA, Np, arcsec/asec/as, t atomic mass unit, astronomical unit, dalton, day, decibel, degree celsius, degree, electronvolt, hectare, hour, liter, minute, acrminute, neper, arcsecond, ton English Units distance
in/″, ft/′, yd, mi, rd, li, ch, inch, foot, yard, mile, rod, link, chain, area:
sq in, sq ft sq yd, ac, sq mi, FBM, square inch, square foot, square yard, acre, square mile, board foot volume:
cu in, cu ft cu yd, bbl, pk, bu, tsp, tbl cubic inch, cubic foot, cubic yard, barrel, peck, bushel, teaspoon, tablespoon liquid
fl dr, fl oz, gi, cp/cup, pt, qt, gal, fluid drams, fluid ounces, gill, cup, pint, quart, gallon weight
gr, dr, oz/℥, lb, cwt, dwt, oz t, lb t grain, dram, ounce, pound, hundredweight, pennyweight, troy ounce, troy pound energy
hp, BTU, °F/℉ horsepower, british thermal unit, degree fahrenheit other
mph, mpg mile per hour, mile per gallon Other Units time
a, wk/w, yr/y annum, week, year distance
ltyr/ly, pc, Å/Å light-year, parsec, angstrom other
bar, b/B, cal, Ci, grad, M, R, rpm, ℧ bar, byte, calorie, curie, gradian, roentgen, revolution per minute, mho
Note: bytes (and probably some others) can take any of the SI prefixes
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NSoiffer
Transcripteur
MathPlayer has a long list of units it accepts. I want to record them, so here they are (mostly in the order they occur). First come the abbreviations followed by the word used for the singular case.
Note: in some cases, there are multiple abbreviations listed for a unit. For example "′/'/min" for "minutes". In some cases, such as this one, some characters are listed that look the same. In those cases, they are actually Unicode lookalikes that MathPlayer accepts.
SI Units:
Prefixes
Y, Z, E, P, T, G, M, k, h, da, d, c, m, µ, n, p, f, a, z, y yotta, zetta, exa, peta, tera, giga, mega, kilo, hecto, decka deci, centi, milli, micro, nano, pico, femto, atto, zepto, yocto
Bases
A, cd, K/K, g, m, mol, (s, ″, ", sec) amp, kelvin, gram (actually kilogram), meter, mole, second
Derived
Bq, C, °C/℃, F, Gy, H, Hz, J, kat, lm, lx, N Ω/Ω, Pa, rad, S, Sv, sr, T, V, W, Wb, rad, sr becquerel, coulomb, degree celsius, farad, gray, henry, hertz, joule, kattel, lumen, lux ohm, pascal, radian, siemens, sievert, sterradion, tesla, volt, watt, weber, radian (°?), steradian
Accepted
′/'/min, Hr/h, d, amu/u, au/AU, Da, d/dy, B, dB, °/deg, eV, ha, l/L/ℓ, ′/', arcmin/amin/am/MOA, ", Np, arcsec/asec/as, t minute, hour, day atomic mass unit, astronomical unit, dalton, day, bel, decibel, degree ($\pi/180$), electronvolt, hectare, liter, minute, arcminute, arcsecond, neper, arcsecond, tonne (1 Mg)
English Units
distance
in/″, ft/′, yd, mi, rd, li, ch, inch, foot, yard, mile, rod, link, chain,
area:
sq in, sq ft sq yd, ac, sq mi, FBM,
square inch, square foot, square yard, acre, square mile, board foot
volume:
cu in, cu ft, cu yd, bbl, pk, bu, tsp, tbl cubic inch, cubic foot, cubic yard, barrel, peck, bushel, teaspoon, tablespoon
liquid
fl dr, fl oz, gi, cp/cup, pt, qt, gal,
fluid drams, fluid ounces, gill, cup, pint, quart, gallon
weight
gr, dr, oz/℥, lb, cwt, dwt, oz t, lb t grain, dram, ounce, pound, hundredweight, pennyweight, troy ounce, troy pound
energy
hp, BTU, °F/℉ horsepower, british thermal unit, degree fahrenheit
other
mph, mpg mile per hour, mile per gallon
Other Units
time
a, wk/w, yr/y annum, week, year
distance
ltyr/ly, pc, Å/Å, fm light-year, parsec, angstrom, fermi (= 1 femtometer)
other
atm, bar, b/B, cal, Ci, grad, M, R, rpm, ℧, dyn, erg, ppm, ppb, ppt, ppq atmosphere, bar, byte, calorie, curie, gradian, roentgen, revolution per minute, mho, dyne, erg parts per million, parts per billion, parts per trillion, parts per quadrillion
Note: bytes (and probably some others) can take any of the SI prefixes
Note: units often are combined with positive and negative exponents. For example: $1 \mathrm{N} = 1 \mathrm{kg} \cdot \mathrm{m} \cdot \mathrm{s} ^{-2}$ or written using a fraction: $1 \mathrm{N} = 1\frac{ \mathrm{kg} \cdot \mathrm{m}}{ \mathrm{s} ^{2}}$.
The form using division often is spoken using "per" instead of "over".
Compass directions (N, E, W, S) are not units. They can be combined though (NW, and maybe even NNW).