class Polymath::Nomial::Monomial
Constants
- PlaceholderVar
Attributes
cof[RW]
deg[RW]
var[RW]
Public Class Methods
new(cof:1, deg:0, var: ::PlaceholderVar)
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# File lib/polymath/nomial/monomial.rb, line 9 def initialize(cof:1, deg:0, var: ::PlaceholderVar) @cof, @deg, @var = cof, deg, var end
Public Instance Methods
+(other)
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# File lib/polymath/nomial/monomial.rb, line 42 def +(other) raise "error" unless deg == other.deg raise "error" unless var == other.var Monomial.new(cof:@cof + other.cof, deg:deg, var:var) end
/(other)
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# File lib/polymath/nomial/monomial.rb, line 34 def /(other) Monomial.new( cof: cof / other.cof, deg: deg - other.deg, var: var ) end
gcd(other)
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# File lib/polymath/nomial/monomial.rb, line 26 def gcd(other) Monomial.new( cof: cof.gcd(other.cof), deg: [deg, other.deg].min, var: var ) end
homogenize!(new_var)
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# File lib/polymath/nomial/monomial.rb, line 13 def homogenize!(new_var) @cof = 1 unless cof @deg = 0 unless deg @var = new_var end
merge!(other)
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# File lib/polymath/nomial/monomial.rb, line 19 def merge!(other) @cof *= other.cof if other.cof @deg += other.deg if other.deg @var = other.var if other.var != ::PlaceholderVar self end
to_s()
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# File lib/polymath/nomial/monomial.rb, line 48 def to_s if deg > 0 "#{cof == 1 ? "" : cof}" + "#{var}" + (deg > 1 ? "^#{deg}" : "") else "#{cof}" end end