Distribution of 0 digits in factorial series: Difference between revisions

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=={{header|Ruby}}==

<syntaxhighlight lang="ruby">[100, 1000, 10_000].each do |n|

v = 1

total_proportion = (1..n).sum do |k|

v *= k

digits = v.digits

Rational(digits.count(0), digits.size)

end

puts "The mean proportion of 0 in factorials from 1 to #{n} is #{(total_proportion/n).to_f}."

end</syntaxhighlight>

{{out}}

<pre>The mean proportion of 0 in factorials from 1 to 100 is 0.24675318616743222.

The mean proportion of 0 in factorials from 1 to 1000 is 0.20354455110316463.

The mean proportion of 0 in factorials from 1 to 10000 is 0.17300384824186604.