Ulam numbers: Difference between revisions
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→{{header|Wren}}: Minor tidy
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===Version 1===
{{libheader|Wren-set}}
<syntaxhighlight lang="
var ulam = Fn.new() { |n|
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{{libheader|Wren-fmt}}
The above version is reasonably efficient and runs in about 21.6 seconds on my machine (Intel Core i7-8565U). The following version, which builds up a sieve as it goes along, is more than 3 times faster.
<syntaxhighlight lang="
import "./fmt" for Fmt
var ulam = Fn.new { |n|
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The only downside with this version is that you need to know how much memory to allocate in advance.
<syntaxhighlight lang="
var ulam = Fn.new { |n|
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