fib
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Contents: Description, Arguments, Usage, Examples, Sub-Functions, Source Supported Under Version: >1.00
Description Fibonacci numbers.
Arguments and Return Values Arguments: One numeric array (not necessarily just integers; this function uses the generalized Binet formula to extend the Fibonacci numbers to all real numbers) Return Value: An array of Fibonacci numbers corresponding to each element in the input array Output format: int, if input is byte, short, or int with all elements between -31 and 31 (inclusive) float or double, if input is float or double (respectively) double, if maximum of absolute value of input is greater than 31 The function returns the simplest format that can accurately represent the output value(s). If no arguments are input, fib() prints its description, as shown below.
Usage Syntax: fib(x) 'x' - a numeric array (any format)
Examples dv> fib() Fibonacci numbers fib(n) returns nth Fibonacci number Uses generalized version of Binet's formula The generalized version extends the sequence to all numbers Works for arrays S.Marshall 02-17-2008 0 dv> fib(create(11)) 11x1x1 array of int, bsq format [44 bytes] 0 1 1 2 3 5 8 13 21 34 55 dv> fib(-1.//-0.5//0.//0.5//1.) 5x1x1 array of float, bsq format [20 bytes] 1.00000 0.351578 0.00000 0.568864 1.00000 dv> fib(31) 1346269 dv> fib(32) 2.17831e+06 |
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Recent Library Changes Created On: 12-07-2007 |
