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Yukihiro "Matz" Matsumoto
20b9002214
Move conditional mrb_define_method_id() calls into ROM entry arrays using #ifdef guards. With linear search, sizeof in MRB_MT_ROM_TAB() adjusts automatically after preprocessing. Cross-class ROM tables (methods a gem defines on a class it does not own) are reverted to mrb_define_method_id(). Multiple gems should not add ROM table layers to the same class; each layer costs a 16-byte mrb_mt_tbl struct in RAM and deepens the lookup chain. Use mrb_define_method_id() for cross-class methods. Co-authored-by: Claude <noreply@anthropic.com>
mruby-complex
mruby-complex is an mrbgem that provides a Complex class for mruby, allowing for the representation and manipulation of complex numbers. It is designed to be compatible with the Complex class in standard Ruby.
Functionality
The Complex class provided by this mrbgem supports:
- Creation of complex numbers from real and imaginary parts, or using the
isuffix for numbers. - Basic arithmetic operations: addition (
+), subtraction (-), multiplication (*), division (/). - Methods to access the real and imaginary parts (
real,imaginaryorimag). - Calculation of absolute value (
abs,magnitude), argument/angle (arg,angle,phase), and square of the absolute value (abs2). - Complex conjugate (
conjugate,conj). - Conversion to polar coordinates (
polar). - Conversion to other numeric types where appropriate (
to_f,to_i,to_r,to_c). - Inspection and string representation (
inspect,to_s).
Usage Examples
Here are some basic examples of how to use the Complex class:
# Creating complex numbers
c1 = Complex(1, 2) # => (1+2i)
c2 = 3 + 4i # => (3+4i)
c3 = Complex.polar(5, Math::PI/2) # => (0.0+5.0i) (approximately)
# Arithmetic operations
puts c1 + c2 # => (4+6i)
puts c1 - c2 # => (-2-2i)
puts c1 * c2 # => (-5+10i)
puts c1 / c2 # => (0.44+0.08i)
# Accessing parts
puts c1.real # => 1
puts c1.imaginary # => 2
# Other methods
puts c2.abs # => 5.0
puts c2.arg # => 0.9272952180016122 (radians)
puts c2.conjugate # => (3-4i)
puts c1.polar # => [2.23606797749979, 1.1071487177940904]
# Numerics can be converted to Complex
puts 5.to_c # => (5+0i)
puts 2.3.to_c # => (2.3+0i)
# The `i` method on numerics creates a complex number with zero real part
puts 5i # => (0+5i)
puts 2.3i # => (0+2.3i)
Note
This mrbgem aims to provide functionality similar to the Complex class found in the standard Ruby library. Refer to the Ruby documentation for Complex for more detailed information on the behavior of various methods.