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8759ef32 OS |
1 | /* |
2 | * rational fractions | |
3 | * | |
6684b572 | 4 | * Copyright (C) 2009 emlix GmbH, Oskar Schirmer <oskar@scara.com> |
8759ef32 OS |
5 | * |
6 | * helper functions when coping with rational numbers, | |
7 | * e.g. when calculating optimum numerator/denominator pairs for | |
8 | * pll configuration taking into account restricted register size | |
9 | */ | |
10 | ||
11 | #ifndef _LINUX_RATIONAL_H | |
12 | #define _LINUX_RATIONAL_H | |
13 | ||
14 | void rational_best_approximation( | |
15 | unsigned long given_numerator, unsigned long given_denominator, | |
16 | unsigned long max_numerator, unsigned long max_denominator, | |
17 | unsigned long *best_numerator, unsigned long *best_denominator); | |
18 | ||
19 | #endif /* _LINUX_RATIONAL_H */ |