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CHANGELOG.md

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Changelog

v0.2.1

Minor Additions

  • Add 'v' to the version string of the version command
  • Add v alias for version in KeywordInterface

Bugfixes

  • Fix malformed whitespace in the help command
  • Fix expressions like d/d\Gamma causing parsing errors
  • Fix evaluation using LaTeX replacements such as eval 2\Gamma \Gamma=3 causing parsing errors

v0.2.0

Major Additions

  • Integer division (with //), modulo, lcm, and gcd operations
  • Floor, ceiling, rounding, and random operations
  • New abstract classes for new integer operations
  • Settings to enforce functions' domain and range when simplifying using inverse functions
  • Array indexing to retrieve values from methods like solve

Minor Additions

  • Make parsing errors more descriptive
  • Port parsing to use operation maps rather than operation lists
  • New test class for integer operations
  • Many new exceptions for improved error handling
  • Support for _ in evaluate (used as eval x^2 x=_ when _ is a Double)
  • Better handling of ArrayIndexOutOfBoundsExceptions in the keyword interface
  • err command to improve error reporting
  • version command
  • reset command

Changes

  • Restrict variable and function names to a regex of valid names to improve multi-character name support
  • Change equals to check if two functions are exactly equal and implement equalsSimplified to check if they are equal when simplified
  • Make substitute/sub more powerful in the keyword interface by allowing the substitution of multiple expressions simultaneously
  • Make def and sub in automatically perform a minimalSimplify
  • Move SettingsParser functionality directly to Settings
  • Rename SpecialFunction to EndpointFunction
  • Improve exit logic from all interfaces

Bugfixes

  • Fix toInteger error message using the wrong margin from Settings
  • Fix bad rounding in ParsingTools.toInteger and ParsingTools.isAlmostInteger
  • Fix the evaluation of several arctrig functions
  • Fix parsing of non-escaped expressions with spaces such as 1 + sin(x)
  • Fix defconstant not LaTeX-escaping constant names
  • Add an exception when user attempts to use nested quotes in keyword interface
  • Fix division by decimals such as 1/.2 not working properly

v0.1.2

Bugfixes

  • Fix properties not being read on launch for binaries

v0.1.1

Bugfixes

  • Improves support for carriage returns
  • Fix bug that caused CASDemo to exit on entry if it had been previously completed
  • Make TaylorSeries use SingleVariableDefault and not "x"

v0.1.0

Major Additions

  • Storage of functions in an artificial data type
  • Expression simplification
  • Differentiation of functions
    • Storing derivatives as new functions
  • Evaluation of functions
  • Various solver tools
    • Finding zeroes of functions using Newton's or Halley's Method
    • Finding the local maxima or minima of functions on a range
  • Generating Taylor Series from functions
  • Numerical integration via Simpson's rule
  • Basic symbolic integration using only "derivative divides" substitution

Minor Additions

  • Parsing and storing infix expressions like x^2-3y+sin(1/z)
  • Command-line interface in CommandUI
    • Definition and storage of functions
    • Evaluating, differentiating, and numerically integrating functions
    • Solving for zeroes and extrema of functions
    • Substituting stored functions into variables
    • Generating taylor series of functions from a point
    • Defining special constants
    • Defining and removing variables
    • Demo - to start the demo, run CommandUI and input demo