-- Hoogle documentation, generated by Haddock
-- See Hoogle, http://www.haskell.org/hoogle/


-- | Parse and evaluate math expressions with variables and functions
--   
--   A simple tool to evaluate math expressions as strings with support for
--   custom functions and operators
@package mathexpr
@version 0.3.1.0

module Numeric.MathExpr

-- | Evaluate an expression Example: `evaluate def "x + y ^ 2" [("x", 1),
--   ("y", 2)]
evaluate :: Settings -> String -> [(String, Double)] -> Double

-- | Operators are in the form (character, precedence, function) Example:
--   (<a>+</a>, 0, (+)), ('', 1, ()) (higher the precedence, the sooner the
--   operator operates)
--   
--   Functions are in the form (name, function) Example: ("ln", log)
data Settings
Settings :: [(Char, Int, Double -> Double -> Double)] -> [(String, Double -> Double)] -> Settings
[operators] :: Settings -> [(Char, Int, Double -> Double -> Double)]
[functions] :: Settings -> [(String, Double -> Double)]

-- | Functions are in the form (name, function) Example: ("ln", log)
defaultFunctions :: [([Char], Double -> Double)]

-- | Operators are in the form (character, precedence, function) Example:
--   (<a>+</a>, 0, (+)), ('', 1, ()) (higher the precedence, the sooner the
--   operator operates)
defaultOperators :: [(Char, Int, Double -> Double -> Double)]
instance Data.Default.Class.Default Numeric.MathExpr.Settings