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Revision as of 23:53, 16 January 2020

415 bytes removed ,  4 years ago
→‎{{header|Ruby}}: Removed pre 1.9 info
(→‎{{header|Ruby}}: CMath is removed from Standard Library since Ruby 2.5)
(→‎{{header|Ruby}}: Removed pre 1.9 info)
Line 4,164:
 
=={{header|Ruby}}==
<lang ruby>
<lang ruby>require 'complex' # With Ruby 1.9, this line is optional.
# ThreeFour ways to write complex numbers:▼
 
▲# Three ways to write complex numbers:
a = Complex(1, 1) # 1. call Kernel#Complex
i = Complex::I # 2. use Complex::I
b = 3.14159 + 1.25 * i
c = '1/2+3/4i'.to_c # 3. Use the .to_c method from String, result ((1/2)+(3/4)*i)
 
#Ruby 2.1 introduced a suffix to create a complex:
c = 1.0/2+3/4i # (0.5-(3/4)*i)
 
Line 4,184 ⟶ 4,181:
 
''Notes:''
* Ruby 1.8 must <code>require 'complex'</code>. Ruby 1.9 moves complex numbers to core, so <code>require 'complex'</code> only defines a few deprecated methods.
* Ruby 1.9 deprecates Numeric#im; code like <code>a = 1 + 1.im</code> or <code>b = 3.14159 + 1.25.im</code> would call the deprecated method.
* All of these operations are safe with other numeric types. For example, <code>42.conjugate</code> returns 42.
 
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