Class: Complex

Inherits:
Numeric
  • Object
show all
Defined in:
lib/bigdecimal/util.rb,
sig/big_decimal.rbs,
sig/big_decimal_util.rbs

Instance Method Summary collapse

Instance Method Details

#*(arg0) ⇒ Complex #* ⇒ void

Returns the product of self and numeric:

Complex.rect(2, 3)  * Complex.rect(2, 3)  # => (-5+12i)
Complex.rect(900)   * Complex.rect(1)     # => (900+0i)
Complex.rect(-2, 9) * Complex.rect(-9, 2) # => (0-85i)
Complex.rect(9, 8)  * 4                   # => (36+32i)
Complex.rect(20, 9) * 9.8                 # => (196.0+88.2i)

Overloads:

  • #*(arg0) ⇒ Complex

    Parameters:

    Returns:

  • #* ⇒ void

    This method returns an undefined value.



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# File 'sig/big_decimal.rbs', line 1472

def *: (BigDecimal) -> Complex
| ...

#+(arg0) ⇒ Complex #+ ⇒ void

Returns the sum of self and numeric:

Complex.rect(2, 3)  + Complex.rect(2, 3)  # => (4+6i)
Complex.rect(900)   + Complex.rect(1)     # => (901+0i)
Complex.rect(-2, 9) + Complex.rect(-9, 2) # => (-11+11i)
Complex.rect(9, 8)  + 4                   # => (13+8i)
Complex.rect(20, 9) + 9.8                 # => (29.8+9i)

Overloads:

  • #+(arg0) ⇒ Complex

    Parameters:

    Returns:

  • #+ ⇒ void

    This method returns an undefined value.



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# File 'sig/big_decimal.rbs', line 1487

def +: (BigDecimal) -> Complex
| ...

#-(arg0) ⇒ Complex #- ⇒ void

Returns the difference of self and numeric:

Complex.rect(2, 3)  - Complex.rect(2, 3)  # => (0+0i)
Complex.rect(900)   - Complex.rect(1)     # => (899+0i)
Complex.rect(-2, 9) - Complex.rect(-9, 2) # => (7+7i)
Complex.rect(9, 8)  - 4                   # => (5+8i)
Complex.rect(20, 9) - 9.8                 # => (10.2+9i)

Overloads:

  • #-(arg0) ⇒ Complex

    Parameters:

    Returns:

  • #- ⇒ void

    This method returns an undefined value.



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# File 'sig/big_decimal.rbs', line 1502

def -: (BigDecimal) -> Complex
| ...

#/(arg0) ⇒ Complex #/ ⇒ void

Returns the quotient of self and numeric:

Complex.rect(2, 3)  / Complex.rect(2, 3)  # => (1+0i)
Complex.rect(900)   / Complex.rect(1)     # => (900+0i)
Complex.rect(-2, 9) / Complex.rect(-9, 2) # => ((36/85)-(77/85)*i)
Complex.rect(9, 8)  / 4                   # => ((9/4)+2i)
Complex.rect(20, 9) / 9.8                 # => (2.0408163265306123+0.9183673469387754i)

Overloads:

  • #/(arg0) ⇒ Complex

    Parameters:

    Returns:

  • #/ ⇒ void

    This method returns an undefined value.



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# File 'sig/big_decimal.rbs', line 1457

def /: (BigDecimal) -> Complex
| ...

#to_d(precision = 0) ⇒ BigDecimal

Returns the value as a BigDecimal. If the imaginary part is not 0, an error is raised

The precision parameter is used to determine the number of significant digits for the result. When precision is set to 0, the number of digits to represent the float being converted is determined automatically. The default precision is 0.

require 'bigdecimal'
require 'bigdecimal/util'

Complex(0.1234567, 0).to_d(4)   # => 0.1235e0
Complex(Rational(22, 7), 0).to_d(3)   # => 0.314e1
Complex(1, 1).to_d   # raises ArgumentError

See also Kernel.BigDecimal.

Parameters:

  • args (Object)

Returns:



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# File 'lib/bigdecimal/util.rb', line 164

def to_d(precision=0)
  BigDecimal(self) unless self.imag.zero? # to raise error

  BigDecimal(self.real, precision)
end