mruby-math

A Rust implementation of the Math module for mruby/edge.

Features

This crate provides mathematical functions and constants for mruby/edge:

Constants

• Math::PI - π (pi)
• Math::E - e (Euler's number)

Trigonometric Functions

• Math.sin(x) - Sine
• Math.cos(x) - Cosine
• Math.tan(x) - Tangent
• Math.asin(x) - Arcsine
• Math.acos(x) - Arccosine
• Math.atan(x) - Arctangent
• Math.atan2(y, x) - Arctangent of y/x

Hyperbolic Functions

• Math.sinh(x) - Hyperbolic sine
• Math.cosh(x) - Hyperbolic cosine
• Math.tanh(x) - Hyperbolic tangent
• Math.asinh(x) - Inverse hyperbolic sine
• Math.acosh(x) - Inverse hyperbolic cosine
• Math.atanh(x) - Inverse hyperbolic tangent

Exponential and Logarithmic Functions

• Math.exp(x) - e^x
• Math.log(x) - Natural logarithm (ln)
• Math.log(x, base) - Logarithm with custom base
• Math.log10(x) - Base-10 logarithm
• Math.log2(x) - Base-2 logarithm

Root Functions

• Math.sqrt(x) - Square root
• Math.cbrt(x) - Cube root

Other Functions

• Math.hypot(x, y) - Hypotenuse (√(x² + y²))
• Math.ldexp(fraction, exponent) - fraction × 2^exponent
• Math.erf(x) - Error function
• Math.erfc(x) - Complementary error function

Usage

Add this to your Cargo.toml:

[dependencies]
mruby-math = "0.1.0"
mrubyedge = "1.1.1"

Initialize the Math module in your VM:

use mruby_math::init_math;
use mrubyedge::yamrb::vm::VM;

let mut vm = VM::open(&mut rite);
init_math(&mut vm);

Example

# Calculate sine wave
x = Math::PI / 4
y = Math.sin(x)

# Calculate distance
distance = Math.hypot(3, 4)  # => 5.0

# Exponential growth
result = Math.exp(2)  # => e^2

License

BSD-3-Clause