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Contents?: true
Size: 1.13 KB
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Stored size: 1.13 KB
Contents
# coding: utf-8
describe Integer, "#lucas2" do
@seq = {
# A000204
[1, -1] => [2]+[1,3,4,7,11,18,29,47,76,123,199,322,521,843,1364,
2207,3571,5778,9349,15127,24476,39603,64079,
103682,167761,271443,439204,710647,1149851,
1860498,3010349,4870847,7881196,12752043],
# A002203
[2, -1] => [2,2,6,14,34,82,198,478,1154,2786,6726,16238,
39202,94642,228486,551614,1331714,3215042,7761798,
18738638,45239074,109216786,263672646,636562078,
1536796802,3710155682,8957108166,21624372014,
52205852194],
# A014551
[1, -2] => [2,1,5,7,17,31,65,127,257,511,1025,2047,4097,8191,
16385,32767,65537,131071,262145,524287,1048577,
2097151,4194305,8388607,16777217,33554431,
67108865,134217727,268435457,536870911,1073741825,
2147483647]
}
@seq.each do |(p, q), seq|
seq.each_with_index do |l, n|
it "returns #{l} for the #{n}#{n.ordinal} Lucas number of the 2nd kind (#{p}, #{q})" do
n.lucas2(p, q).should == l
end
end
end
end
Version data entries
5 entries across 5 versions & 1 rubygems