Mathematical functions for Predicator expressions.

Provides SCXML-compatible Math functions for numerical computations.

Available Functions

• Math.pow(base, exponent) - Raises base to the power of exponent
• Math.sqrt(value) - Returns the square root of a number
• Math.abs(value) - Returns the absolute value
• Math.floor(value) - Rounds down to the nearest integer
• Math.ceil(value) - Rounds up to the nearest integer
• Math.round(value) - Rounds to the nearest integer
• Math.min(a, b) - Returns the smaller of two numbers
• Math.max(a, b) - Returns the larger of two numbers
• Math.random() - Returns a random float between 0 and 1

Examples

iex> {:ok, result} = Predicator.evaluate("Math.pow(2, 3)",
...>   %{}, providers: [Predicator.Functions.MathFunctions])
iex> result
8.0

iex> {:ok, result} = Predicator.evaluate("Math.sqrt(16)",
...>   %{}, providers: [Predicator.Functions.MathFunctions])
iex> result
4.0