mathjs - npm Package Versions

2015-08-30, version 2.2.0

• Units with powers (like m^2 and s^-1) now output with the best prefix.
• Implemented support for units to abs, cube, sign, sqrt, square. Thanks @ericman314.
• Implemented function catalan (Combinatorics). Thanks @devanp92.
• Improved the canDefineProperty check to return false in case of IE8, which has a broken implementation of defineProperty. Thanks @golmansax.
• Fixed function to not working in case of a simplified unit.
• Fixed #437: an issue with row swapping in lup, also affecting lusolve.

2015-08-12, version 2.1.1

• Fixed wrong values of the physical constants speedOfLight, molarMassC12, and magneticFluxQuantum. Thanks @ericman314 for finding two of them.

2015-08-11, version 2.1.0

• Implemented derived units (like 110 km/h in m/s). Thanks @ericman314.
• Implemented support for electric units. Thanks @ericman314.
• Implemented about 50 physical constants like speedOfLight, gravity, etc.
• Implemented function kldivergence (Kullback-Leibler divergence). Thanks @saromanov.
• Implemented function mode. Thanks @kv-kunalvyas.
• Added support for unicode characters in the expression parser: greek letters and latin letters with accents. See #265.
• Internal functions Unit.parse and Complex.parse now throw an Error instead of returning null when passing invalid input.

2015-07-29, version 2.0.1

• Fixed operations with mixed fractions and numbers be converted to numbers instead of fractions.

2015-07-28, version 2.0.0

• Large internal refactoring:
  • performance improvements.
  • allows to create custom bundles
  • functions are composed using typed-function and are extensible
• Implemented support for fractions, powered by the library fraction.js.
• Implemented matrix LU decomposition with partial pivoting and a LU based linear equations solver (functions lup and lusolve). Thanks @rjbaucells.
• Implemented a new configuration option predictable, which can be set to true in order to ensure predictable function output types.
• Implemented function intersect. Thanks @kv-kunalvyas.
• Implemented support for adding toTex properties to custom functions. Thanks @FSMaxB.
• Implemented support for complex values to nthRoot. Thanks @gangachris.
• Implemented util functions isInteger, isNegative, isNumeric, isPositive, and isZero.

breaking changes

• String input is now converted to numbers by default for all functions.
• Adding two strings will no longer concatenate them, but will convert the strings to numbers and add them.
• Function index does no longer accept an array [start, end, step], but instead accepts an array with arbitrary index values. It also accepts a Range object as input.
• Function typeof no longer returns lower case names, but now returns lower case names for primitives (like number, boolean, string), and upper-camel-case for non-primitives (like Array, Complex, Function).
• Function import no longer supports a module name as argument. Instead, modules can be loaded using require: math.import(require('module-name')).
• Function import has a new option silent to ignore errors, and throws errors on duplicates by default.
• Method Node.compile() no longer needs math to be passed as argument.
• Reintroduced method Node.eval([scope]).
• Function sum now returns zero when input is an empty array. Thanks @FSMAxB.
• The size of Arrays is no longer validated. Matrices will validate this on creation.

2015-07-12, version 1.7.1

• Fixed #397: Inaccuracies in nthRoot for very large values, and wrong results for very small values. (backported from v2)
• Fixed #405: Parser throws error when defining a function in a multiline expression.

2015-05-31, version 1.7.0

• Implemented function quantileSeq and partitionSelect. Thanks @BigFav.
• Implemented functions stirlingS2, bellNumbers, composition, and multinomial. Thanks @devanp92.
• Improved the performance of median (see #373). Thanks @BigFav.
• Extended the command line interface with a mode option to output either the expressions result, string representation, or tex representation. Thanks @FSMaxB.
• Fixed #309: Function median mutating the input matrix. Thanks @FSMaxB.
• Fixed Node.transform not recursing over replaced parts of the node tree (see #349).
• Fixed #381: issue in docs of randomInt.

2015-04-22, version 1.6.0

• Improvements in toTex. Thanks @FSMaxB.
• Fixed #328: abs(0 + 0i) evaluated to NaN.
• Fixed not being able to override lazy loaded constants.

2015-04-09, version 1.5.2

• Fixed #313: parsed functions did not handle recursive calls correctly.
• Fixed #251: binary prefix and SI prefix incorrectly used for byte. Now following SI standards (1 KiB == 1024 B, 1 kB == 1000 B).
• Performance improvements in parsed functions.

2015-04-08, version 1.5.1

• Fixed #316: a bug in rounding values when formatting.
• Fixed #317, #319: a bug in formatting negative values.