Sha256: 42ecb69a6716a9c7dc8846b80eae60a07c55a3aa6ad3b947011c77c58d68d41f
Contents?: true
Size: 583 Bytes
Versions: 36
Compression:
Stored size: 583 Bytes
Contents
describe Integer, "#smith?" do
# http://www.research.att.com/~njas/sequences/A006753
SMITH = [4,22,27,58,85,94,121,166,202,265,274,319,346,355,
378,382,391,438,454,483,517,526,535,562,576,588,
627,634,636,645,648,654,663,666,690,706,728,729,
762,778,825,852,861,895,913,915,922,958,985,1086]
it "returns true for Smith numbers" do
SMITH.each do |number|
number.should be_smith
end
end
it "returns false for non-Smith numbers" do
((1..1086).to_a - SMITH).each do |number|
number.should_not be_smith
end
end
end
Version data entries
36 entries across 36 versions & 1 rubygems