v5.1.2

Features

• Add 'amps' and 'amp' for 'ampere', see #197
• Added plural version of Henry, see #202 (@david340804)

Bugfixes

• Explicitly perform the conversion to the target unit even if the units are mathematically equal, to ensure that (for example) kB / ms can be converted to MB / s (see #200)
• Fixed a problem with npm install

v5.1.0

Features:

• Add minimum, maximum, mean and abs, see #127
• Added elementaryCharge, see #137
• Added "dummy" units, see #136
  • dollars, dollar, USD, $
  • dots, dot
  • dpi
  • euros, euro, EUR, €
  • persons, person, people
  • pieces, piece
  • pixels, pixel, px
  • ppi
  • frame, fps
• Other new units:
  • pound_force, lbf
  • au, astronomicalunits (@Infinite027)
  • thou (@jimmo)
  • ppm, ppb, ppq, …, percent, pct (@jimmo)
  • knot, kn, kt (@AMPortugal)
  • M, NM, nmi (@AMPortugal)

Changes:

• per now has a higher precedence than /, see #143
• atan2 arguments can now be dimensionful, see #142
• In the online version, the URL is now updated with the input, making it easy to share calculations, see #169 (@n4bb12)
• The history is now saved in the XDG data directory (~/.local/share/ by default), see #188 (@bAndie91)

Other:

• Support for binaries (@colinwahl)
• Many updates on the build system, thanks to @n4bb12!

v5.0.0

Features:

• Support for user-defined functions (#59).
• Added sum and product (#116).
• Added modulo operator % (#114).
• Added million, thousand, etc. as constants (#86).
• Support for negative exponents without parenthesis: 3^-2 = 3^(-2) (#101).
• Support for all exponentiation operators ⁻⁵, ⁻⁴, .., ⁴, ⁵ (#102).
• Support for multi-parameter functions, added atan2.
• New units: hogsheads, rods (#115).

Bugfixes:

• e, pi and other constants cannot be redefined by the user (#120).
• Should be able to add zero to a non-scalar value (#121).
• Fixed precedence of unary minus operator.

Misc:

• Updated documentation & a man page for the terminal version.
• A Fedora package is available (Thanks to @Fnux).
• Travis CI is now enabled.

v4.8.0

• Support for binary prefixes (KiB, MiB, GiB, ..), see #81
• Added temperature-conversion functions, see #97
• New units: octet, psi, mmHg, atm, BTU, see #109 #103 #111
• Fixed problems with multiline inputs and tab-completion in jQuery Terminal (@jcubic), see #78

Thanks to: @gcmalloc @l2dy @GeoffreyFrogeye @leipert

v4.7.0

• Add opensearch integration (@mbarkhau)
• Added international spelling of some SI units (@zelpa, @peteryates)
• Use u as an alias for micro (@zpiman)
• Add tau as constant (@Caleb-An)
• Change -> to ➞ in pretty printing (@perryprog)
• Added RPM, calorie, parsec, lightyear, fortnight, fluidounce and furlong

Thanks to @zmwangx, insect can now be installed via homebrew!

v4.6.0

• Vastly improved automatic simplification, e.g. 200 L/m = 0.2 m².
• Fix two minor parser errors concerning the ² and ³ operators

v4.5.0

• Added full form of SI prefixes (kilo, nano, ...), see #72
• Added per as a new keyword for division, see #73
• SI-compliant pretty printing (#74)
• New units: Bel, Astronomical unit, Barn, Bar, Å, Gauss, see #67
• Added Wh for "watt-hour", see #70

Other fixes

• #71, #75

v4.4.0

• Added factorial (! operator)
• Added gamma function

v4.3.0

• Removed 'w' as alias for 'week'
• Minor fixes

v4.2.1

• Fix exponent of Avogadro constant