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An unholy hack that can do too many things.
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README.md

Synge

Build Status

A Shunting Yard calculation eNGinE with GTK+ and Command Line interfaces.

Features

  • Multiple Precision Numbers (using MPFR + GMP)
    • Correct to 64 decimal places
    • No IEEE 754 rounding errors
  • Scientific Functions
    • abs(...)
    • sqrt(...)
    • cbrt(...)
    • round(...)
    • ceil(...)
    • floor(...)
    • log(...)
    • ln(...)
    • log10(...)
    • rand(...)
    • randi(...)
    • fact(...)
    • series(...)
    • bool(...)
    • deg2rad(...)
    • deg2grad(...)
    • rad2deg(...)
    • rad2grad(...)
    • grad2deg(...)
    • grad2rad(...)
    • sinh(...)
    • cosh(...)
    • tanh(...)
    • asinh(...)
    • acosh(...)
    • atanh(...)
    • sin(...)
    • cos(...)
    • tan(...)
    • asin(...)
    • acos(...)
    • atan(...)
  • Shortcut Conditional Expressions
    • true ? 42 : 1 (42)
    • false ? 1/0 : 3 (3, no error)
  • Mathematical Constants
    • pi
    • e
    • phi
    • true
    • false
  • Recursive User Functions
    • f := f + 1
  • Variables
    • a = 42
  • Simple Programming API
  • Detailed Traceback Errors
  • Dynamic Scoping

Examples

Fibonacci Sequence:

  • a = b = 1 (set up variables)
  • (a < b) ? (a = a + b) : (b = a + b) (generate next number in sequence)

Series:

  • x = <input> (input)
  • f := (x > 0) ? x-- + f : 0 (recursively generate result)

Factorial:

  • x = <input> (input)
  • f := (x > 0) ? x-- * f : 1 (recursively generate result)

Traceback:

  • f := 1/0 (will not print an error)
  • true ? f : 0
Synge Traceback (most recent call last):
  Module <main>
  <if> condition, at 6
  Function f, at 1
MathError: Cannot divide by zero @ 2

Dynamic Scoping:

  • f := a=3
  • ::a (delete a)
  • f (define a within f)
  • a

License

(GPLv3 or later)

Copyright (C) 2013, 2016 Aleksa Sarai

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.