Left factorials: Difference between revisions
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left ! of 10000 ───► 35656 digits
</pre>
=={{header|Ring}}==
<lang ring>
a = leftFact(0,10,1)
see "" + a + nl
func leftFact f,t,s
see "------ From " + f + " --To -> " + t +" Step " + s + " -------" + nl
for i = f to t step s
leftFact = 1
fct = 1
for j = 1 to i - 1
fct = fct * j
leftFact = leftFact + fct
next
if i >= 1000 see "" + i + " " + len(string(leftFact)) + " digits" + nl
else see "" + i + " " + leftFact + nl ok
next
</lang>
=={{header|Ruby}}==
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