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mathjs - npm Package Versions
Changelog
2013-10-08, version 0.14.0
- Introduced an option
math.options.matrix.defaultwhich can have valuesmatrix(default) orarray. This option is used by the functionseye,ones,range, andzeros, to determine the type of matrix output. - Getting a subset of a matrix will automatically squeeze the resulting subset, setting a subset of a matrix will automatically unsqueeze the given subset.
- Removed concatenation of nested arrays in the expression parser.
You can now input nested arrays like in JavaScript. Matrices can be
concatenated using the function
concat. - The matrix syntax
[...]in the expression parser now creates 1 dimensional matrices by default.math.eval('[1,2,3,4]')returns a matrix with size[4],math.eval('[1,2;3,4]')returns a matrix with size[2,2]. - Documentation is restructured and extended.
- Fixed non working operator
mod(modulus operator).
Changelog
2013-09-03, version 0.13.0
- Implemented support for booleans in all relevant functions.
- Implemented functions
mapandforEach. Thanks Sebastien Piquemal (@sebpic). - All construction functions can be used to convert the type of variables, also element-wise for all elements in an Array or Matrix.
- Changed matrix indexes of the expression parser to one-based with the upper-bound included, similar to most math applications. Note that on a JavaScript level, math.js uses zero-based indexes with excluded upper-bound.
- Removed support for scalars in the function
subset, it now only supports Array, Matrix, and String. - Removed the functions
getandsetfrom a selector, they are a duplicate of the functionsubset. - Replaced functions
getandsetofMatrixwith a single functionsubset. - Some moving around with code and namespaces:
- Renamed namespace
math.exprtomath.expression(contains Scope, Parser, node objects). - Renamed namespace
math.docstomath.expression.docs. - Moved
math.expr.Selectortomath.chaining.Selector.
- Renamed namespace
- Fixed some edge cases in functions
lcmandxgcd.
Changelog
2013-08-22, version 0.12.1
- Fixed outdated version of README.md.
- Fixed a broken unit test.
Changelog
2013-08-22, version 0.12.0
- Implemented functions
random([min, max]),randomInt([min, max]),pickRandom(array). Thanks Sebastien Piquemal (@sebpic). - Implemented function
distribution(name), generating a distribution object with functionsrandom,randomInt,pickRandomfor different distributions. Currently supportinguniformandnormal. - Changed the behavior of
rangeto exclude the upper bound, sorange(1, 4)now returns[1, 2, 3]instead of[1, 2, 3, 4]. - Changed the syntax of
range, which is nowrange(start, end [, step])instead ofrange(start, [step, ] end). - Changed the behavior of
onesandzerosto geometric dimensions, for exampleones(3)returns a vector with length 3, filled with ones, andones(3,3)returns a 2D array with size [3, 3]. - Changed the return type of
onesandzeros: they now return an Array when arguments are Numbers or an Array, and returns a Matrix when the argument is a Matrix. - Change matrix index notation in parser from round brackets to square brackets,
for example
A[0, 0:3]. - Removed the feature introduced in v0.10.0 to automatically convert a complex value with an imaginary part equal to zero to a number.
- Fixed zeros being formatted as null. Thanks @TimKraft.
Changelog
2013-07-23, version 0.11.0
- Changed math.js from one-based to zero-based indexes.
- Getting and setting matrix subset is now zero-based.
- The dimension argument in function
concatis now zero-based.
- Improvements in the string output of function help.
- Added constants
trueandfalse. - Added constructor function
boolean. - Fixed function
selectnot accepting0as input. Thanks Elijah Manor (@elijahmanor). - Parser now supports multiple unary minus operators after each other.
- Fixed not accepting empty matrices like
[[], []]. - Some fixes in the end user documentation.
Changelog
2013-07-08, version 0.10.0
- For complex calculations, all functions now automatically replace results
having an imaginary part of zero with a Number. (
2i * 2inow returns a Number-4instead of a Complex-4 + 0i). - Implemented support for injecting custom node handlers in the parser. Can be used for example to implement a node handler for plotting a graph.
- Implemented end user documentation and a new
helpfunction. - Functions
sizeandsqueezenow return a Matrix instead of an Array as output on Matrix input. - Added a constant tau (2 * pi). Thanks Zak Zibrat (@palimpsests).
- Renamed function
unaryminustounary. - Fixed a bug in determining node dependencies in function assignments.
Changelog
2013-06-14, version 0.9.1
- Implemented element-wise functions and operators:
emultiply(x .* y),edivide(x ./ y),epow(x .^ y). - Added constants
InfinityandNaN. - Removed support for Workspace to keep the library focused on its core task.
- Fixed a bug in the Complex constructor, not accepting NaN values.
- Fixed division by zero in case of pure complex values.
- Fixed a bug in function multiply multiplying a pure complex value with Infinity.
Changelog
2013-05-29, version 0.9.0
- Implemented function
math.parse(expr [,scope]). Optional parameter scope can be a plain JavaScript Object containing variables. - Extended function
math.expr(expr [, scope])with an additional parameterscope, similar toparse. Example:math.eval('x^a', {x:3, a:2});. - Implemented function
subset, to get or set a subset from a matrix, string, or other data types. - Implemented construction functions number and string (mainly useful inside the parser).
- Improved function
det. Thanks Bryan Cuccioli (@bcuccioli). - Moved the parse code from prototype math.expr.Parser to function math.parse, simplified Parser a little bit.
- Strongly simplified the code of Scope and Workspace.
- Fixed function mod for negative numerators, and added error messages in case of wrong input.