mathjs - npm Package Versions

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.

2015-03-28, version 1.5.0

• Added unit stone (6.35 kg).
• Implemented support for sparse matrices. Thanks @rjbaucells.
• Implemented BigNumber support for function atan2. Thanks @BigFav.
• Implemented support for custom LaTeX representations. Thanks @FSMaxB.
• Improvements and bug fixes in outputting parentheses in Node.toString and Node.toTex functions. Thanks @FSMaxB.
• Fixed #291: function format sometimes returning exponential notation when it should return a fixed notation.

2015-02-28, version 1.4.0

• Implemented trigonometric functions: acosh, acoth, acsch, asech, asinh, atanh, acot, acsc, asec. Thanks @BigFav.
• Added BigNumber support for functions: cot, csc, sec, coth, csch, sech. Thanks @BigFav.
• Implemented support for serialization and deserialization of math.js data types.
• Fixed the calculation of norm() and abs() for large complex numbers. Thanks @rjbaucells.
• Fixed #281: improved formatting complex numbers. Round the real or imaginary part to zero when the difference is larger than the configured precision.

2015-02-09, version 1.3.0

• Implemented BigNumber implementations of most trigonometric functions: sin, cos, tan, asin, acos, atan, cosh, sinh, tanh. Thanks @BigFav.
• Implemented function trace. Thanks @pcorey.
• Faster loading of BigNumber configuration with a high precision by lazy loading constants like pi and e.
• Fixed constants NaN and Infinity not being BigNumber objects when BigNumbers are configured.
• Fixed missing parentheses in the toTex representation of function permutations.
• Some minor fixes in the docs. Thanks @KenanY.

2014-12-25, version 1.2.0

• Support for bitwise operations bitAnd, bitNot, bitOr, bitXor, leftShift, rightArithShift, and rightLogShift. Thanks @BigFav.
• Support for boolean operations and, not, or, xor. Thanks @BigFav.
• Support for gamma function. Thanks @BigFav.
• Converting a unit without value will now result in a unit with value, i.e. inch in cm will return 2.54 cm instead of cm.
• Improved accuracy of sinh and complex cos and sin. Thanks @pavpanchekha.
• Renamed function select to chain. The old function select will remain functional until math.js v2.0.
• Upgraded to decimal.js v4.0.1 (BigNumber library).