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Left factorials: Difference between revisions
m
aligned centered formulæ, simplied some wording, added clarification and whitespace, indented a "where" to better fit with the formula.
ReeceGoding (talk | contribs) m (→Vectorization solution: Small comment) |
m (aligned centered formulæ, simplied some wording, added clarification and whitespace, indented a "where" to better fit with the formula.) |
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Line 10:
:::::::* <big><big> <b> <span style="font-family:serif">!''n''</span> </b> </big></big>
:::::::* <big><big> <b> <span style="font-family:serif">''n''¡</span> </b> </big></big>
(It may not be visually obvious, but the last example uses an upside-down exclamation mark.)
<big><big>
::::: <math> !n = \sum_{k=0}^{n-1} k! </math>
</big></big>
:::: where
<big><big>
::::: <math>!0 = 0</math>
</big></big>
Line 26 ⟶ 27:
;Task
Display the left factorials for:
* zero through ten (inclusive)
* 20 through 110 (inclusive) by tens
<br>
Display the length (in decimal digits) of the left factorials for:
*
;Also see:
* The OEIS entry: [http://oeis.org/A003422 A003422 left factorials]
* The MathWorld entry: [http://mathworld.wolfram.com/LeftFactorial.html left factorial]
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