Vector Parser


  • Data types for: numbers, complex numbers, strings,
    points, vectors, matrices, intervals, unions, lists.

  • Extensible: add/remove types, operations, functions, etc.

  • Can handle   sin^2 x   as   (sin x)^2

  • Can handle   sin 3x   as   sin(3x)   rather than   (sin 3)x

  • Formula object class, so can do formal algebra

    • Simplification:
      -1x2 + 0 x + 3 ==> 3 - x2

    • Evaluation:
      $f = Formula("1+3x");
      $fa = $f->eval(x => $a);

    • Format for TeX, answer checker, etc:
      $f->TeX, $f->string, etc.

    • Choose correct answer checker automatically:
      ANS($f->cmp)

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