Sha256: 77a2e879df39ceb038541e108b57c4580f4a69397510b05bb70eeb245bbc7d31
Contents?: true
Size: 145 Bytes
Versions: 14
Compression:
Stored size: 145 Bytes
Contents
# coding: utf-8
class Integer
def triangular?
return false if self < 0
root = Math.sqrt(8 * self + 1)
root == root.floor
end
end
Version data entries
14 entries across 14 versions & 1 rubygems