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• mathn.rb

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# Rational

Unify

### Public Instance Methods

**(other) click to toggle source
```
# File mathn.rb, line 126
def ** (other)
if other.kind_of?(Rational)
other2 = other
if self < 0
return Complex.new!(self, 0) ** other
elsif other == 0
return Rational(1,1)
elsif self == 0
return Rational(0,1)
elsif self == 1
return Rational(1,1)
end

npd = numerator.prime_division
dpd = denominator.prime_division
if other < 0
other = -other
npd, dpd = dpd, npd
end

for elm in npd
elm[1] = elm[1] * other
if !elm[1].kind_of?(Integer) and elm[1].denominator != 1
return Float(self) ** other2
end
elm[1] = elm[1].to_i
end

for elm in dpd
elm[1] = elm[1] * other
if !elm[1].kind_of?(Integer) and elm[1].denominator != 1
return Float(self) ** other2
end
elm[1] = elm[1].to_i
end

num = Integer.from_prime_division(npd)
den = Integer.from_prime_division(dpd)

Rational(num,den)

elsif other.kind_of?(Integer)
if other > 0
num = numerator ** other
den = denominator ** other
elsif other < 0
num = denominator ** -other
den = numerator ** -other
elsif other == 0
num = 1
den = 1
end
Rational.new!(num, den)
elsif other.kind_of?(Float)
Float(self) ** other
else
x , y = other.coerce(self)
x ** y
end
end
```
Also aliased as: power!
inspect() click to toggle source
```
# File mathn.rb, line 120
def inspect
format "%s/%s", numerator.inspect, denominator.inspect
end
```
power!(other) click to toggle source
Alias for: **
power2(other) click to toggle source
```
# File mathn.rb, line 187
def power2(other)
if other.kind_of?(Rational)
if self < 0
return Complex(self, 0) ** other
elsif other == 0
return Rational(1,1)
elsif self == 0
return Rational(0,1)
elsif self == 1
return Rational(1,1)
end

dem = nil
x = self.denominator.to_f.to_i
neard = self.denominator.to_f ** (1.0/other.denominator.to_f)
loop do
if (neard**other.denominator == self.denominator)
dem = neaed
break
end
end
nearn = self.numerator.to_f ** (1.0/other.denominator.to_f)
Rational(num,den)

elsif other.kind_of?(Integer)
if other > 0
num = numerator ** other
den = denominator ** other
elsif other < 0
num = denominator ** -other
den = numerator ** -other
elsif other == 0
num = 1
den = 1
end
Rational.new!(num, den)
elsif other.kind_of?(Float)
Float(self) ** other
else
x , y = other.coerce(self)
x ** y
end
end
```