mruby-cmath

This mrbgem provides complex number support for mruby, offering mathematical functions that can handle complex numbers, similar to Ruby's standard cmath library.

Requirements

This gem utilizes C99 _Complex features. Therefore, you will need a C compiler that supports C99 or a later version to build and use this gem.

Provided Functions

The CMath module includes the following mathematical functions:

exp(z): Computes the exponential of z.
log(z): Computes the natural logarithm of z.
log(z, b): Computes the logarithm of z with base b.
log2(z): Computes the base-2 logarithm of z.
log10(z): Computes the base-10 logarithm of z.
sqrt(z): Computes the square root of z.
sin(z): Computes the sine of z.
cos(z): Computes the cosine of z.
tan(z): Computes the tangent of z.
asin(z): Computes the arc sine of z.
acos(z): Computes the arc cosine of z.
atan(z): Computes the arc tangent of z.
sinh(z): Computes the hyperbolic sine of z.
cosh(z): Computes the hyperbolic cosine of z.
tanh(z): Computes the hyperbolic tangent of z.
asinh(z): Computes the inverse hyperbolic sine of z.
acosh(z): Computes the inverse hyperbolic cosine of z.
atanh(z): Computes the inverse hyperbolic tangent of z.

Usage Example

Here's a simple example of how to use CMath to calculate the square root of a negative number:

ruby

# Assuming mruby is built with mruby-cmath

# Calculate the square root of -4
result = CMath.sqrt(-4)

# result will be a Complex number (0+2i)
puts result.real      # Output: 0.0
puts result.imaginary # Output: 2.0