factor
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Contents: Description, Arguments, Usage, Examples, Sub-Functions, Related Functions, Source Supported Under Version: > 1.22
Description Determines prime factorization of input integer
Arguments and Return Values Parameters: An integer to be factored Return Value: An Nx1x1 array whose elements give the prime factors of the input integer
Usage Syntax: factor(n) The input must be a scalar positive integer between 2 and intmax (2,147,483,647), inclusive. When factor() is entered without any arguments, it prints its description, as shown below.
Examples dv> factor() Returns prime factorization of input integer Input must be a scalar postive integer >= 2 This function does not use a very efficient algorithm, but on a decent computer it takes less than a second for any positive integer. Only for integers, so inputs greater than intmax (2147483647) are refused. S.Marshall 11-18-2009 0 dv> factor(60) 4x1x1 array of int, bsq format [16 bytes] 2 2 3 5 dv> factor(5040) 8x1x1 array of int, bsq format [32 bytes] 2 2 2 2 3 3 5 7 dv> factor(-2) Error! Input must be a scalar positive integer! 0 dv> factor(4//6) Error! Input must be a scalar positive integer! 0 |
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Recent Library Changes Created On: 11-18-2009 |