21 lines
395 B
Ruby
21 lines
395 B
Ruby
|
cw = Enumerator.new do |y|
|
||
|
|
y << a = 1.to_r
|
||
|
|
loop { y << a = 1/(2*a.floor + 1 - a) }
|
||
|
|
end
|
||
|
|
|
||
|
|
def term_num(rat)
|
||
|
|
num, den, res, pwr, dig = rat.numerator, rat.denominator, 0, 0, 1
|
||
|
|
while den > 0
|
||
|
|
num, (digit, den) = den, num.divmod(den)
|
||
|
|
digit.times do
|
||
|
|
res |= dig << pwr
|
||
|
|
pwr += 1
|
||
|
|
end
|
||
|
|
dig ^= 1
|
||
|
|
end
|
||
|
|
res
|
||
|
|
end
|
||
|
|
|
||
|
|
puts cw.take(20).join(", ")
|
||
|
|
puts term_num (83116/51639r)
|