Class: Float

Inherits:

Object

• Object
• Float

Includes:

SGML

Defined in:

lib/m500.rb

Instance Method Summary

• #is_0? ⇒ Boolean
• #to_Dec ⇒ Object
• #to_Frac ⇒ Object
• #to_K ⇒ Object
• #to_N ⇒ Object
• #to_N0 ⇒ Object
• #to_Q ⇒ Object
• #to_R ⇒ Object
• #to_sgml ⇒ Object
• #to_Sig ⇒ Object
• #to_Z ⇒ Object

Methods included from SGML

#sgml_id, #tog_sgml_id

Instance Method Details

#is_0? ⇒ Boolean

Returns:

• (Boolean)

# File 'lib/m500.rb', line 449

def is_0?
  self === 0.0 ? true : false
end

#to_Dec ⇒ Object

# File 'lib/m500.rb', line 479

def to_Dec
  re = /(\-*\d+).(\d+)e([-|+])(\d+)/
  md = re.match(self.to_s)
  Decimal(md[1].to_i,md[2])
end

#to_Frac ⇒ Object

# File 'lib/m500.rb', line 462

def to_Frac
  Fraction(Zahlen(0), self.to_Q)
end

#to_K ⇒ Object

# File 'lib/m500.rb', line 487

def to_K
  Kettenbruch(self.to_Frac)
end

#to_N ⇒ Object

# File 'lib/m500.rb', line 452

def to_N
  t = emptySet
  t == Natural(self.truncate) if self.truncate == self.ceil
  t   
end

#to_N0 ⇒ Object

# File 'lib/m500.rb', line 457

def to_N0
  t = emptySet
  t == Counting(self.truncate) if self.truncate == self.ceil
  t   
end

#to_Q ⇒ Object

# File 'lib/m500.rb', line 465

def to_Q
  re = /^-/
  md = re.match(self.to_s)
  e = -1    
  e = 1 if  md.to_a.empty?
  md = nil
  re = /(\-*\d+).(\d+)e([-|+])(\d+)/
  md = re.match(self.to_s)
  a = Quotient(md[1].to_i,1)
  b = Quotient(md[2].to_i,10 ** md[2].to_i.to_s.length)
  c = Quotient(1,10 ** md[4].to_i) if md[3] == "-"
  c = Quotient(10 ** md[4].to_i,1) if md[3] == "+"
  c*(b+(a*e))
end

#to_R ⇒ Object

# File 'lib/m500.rb', line 490

def to_R
  emptySet
end

#to_sgml ⇒ Object

# File 'lib/m500.rb', line 439

def to_sgml
  "<mn #{sgml_id}class='float'>#{self.to_s}</mn>"
end

#to_Sig ⇒ Object

# File 'lib/m500.rb', line 484

def to_Sig
  Sigma(self.to_Q)
end

#to_Z ⇒ Object

# File 'lib/m500.rb', line 442

def to_Z
  if self.to_i then
    Zahlen(self.to_i)
  else
    emptySet
  end
end