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Add alternate names with µ for micro instead of u #142

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Add alternate names with µ for micro instead of u #142

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f4a875b
Add alternate names with `µ` for micro instead of `u`.
corranwebster Jul 2, 2021
250d3d4
Add `µm` for `micrometer`.
corranwebster Jul 2, 2021
ae9e950
Merge branch 'main' into enh/use-µ-for-micro
corranwebster Aug 16, 2022
1381977
Test parsing MICRO SIGN and GREEK SMALL LETTER MU; fix other tests.
corranwebster Aug 16, 2022
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4 changes: 2 additions & 2 deletions scimath/units/electromagnetism.py
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Expand Up @@ -57,8 +57,8 @@
###############################################################################

micro_farad = micro * farad
micro_farad.label = 'uf'
mf = micro_farad
micro_farad.label = 'µf'
µf = uf = micro_farad

pico_farad = pico * farad
pico_farad.label = 'pf'
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4 changes: 2 additions & 2 deletions scimath/units/geo_units.py
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Expand Up @@ -93,5 +93,5 @@
###############################################################################
# psonic
###############################################################################
us_per_ft = microsecond / foot
us_per_ft.label = 'us/ft'
µs_per_ft = us_per_ft = microsecond / foot
µs_per_ft.label = 'µs/ft'
2 changes: 1 addition & 1 deletion scimath/units/length.py
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Expand Up @@ -71,7 +71,7 @@

m = meter
nm = nanometer
um = micrometer
µm = um = micrometer
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Probably worth adding a test that both µm (using MICRO SIGN) and μm (using GREEK SMALL LETTER MU) are parsed correctly with this definition. They are right now, but that could change if we move away from using eval at some point in the future.

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FWIW, and somewhat surprisingly, Unicode TR 25 says that GREEK SMALL LETTER MU is the preferred character here. (See section 2.5 of http://www.unicode.org/reports/tr25/)

micron = micrometer
mm = millimeter
cm = centimeter
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2 changes: 1 addition & 1 deletion scimath/units/time.py
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Expand Up @@ -59,7 +59,7 @@
s = sec = second
ps = picosecond
ns = nanosecond
us = usec = microsecond
µs = µsec = us = usec = microsecond
ms = msec = millisecond

# plural aliases
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