Timeline for Find value of x such that x! less than or equal to 1000
Current License: CC BY-SA 3.0
6 events
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| Apr 9, 2015 at 16:49 | comment | added | kirma |
Also, you can do things like Floor[InverseFunction[LogGamma][Log[10] (10^7)] - 1] (* 1723507 *) for numbers up to at least 10^(10^7), like in this case.
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| Apr 9, 2015 at 16:39 | comment | added | David G. Stork |
@kirma Ah... that solution is the best, InverseFunction---Mathematica style. +1
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| Apr 9, 2015 at 16:38 | comment | added | kirma |
One can also use relation of Factorial and Gamma functions for something like: Floor[InverseFunction[Gamma][10^100] - 1] (* 69 *)
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| Apr 9, 2015 at 16:34 | history | edited | David G. Stork | CC BY-SA 3.0 |
added 299 characters in body
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| Apr 9, 2015 at 16:26 | history | edited | David G. Stork | CC BY-SA 3.0 |
added 299 characters in body
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| Apr 9, 2015 at 16:12 | history | answered | David G. Stork | CC BY-SA 3.0 |