From 5b93151030cbda51957f899965c33f532564177b Mon Sep 17 00:00:00 2001 From: Mark Date: Thu, 22 Jun 2023 15:26:56 -0700 Subject: [PATCH] Fixed an error --- Advanced/Error-Correcting Codes/parts/00 detection.tex | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Advanced/Error-Correcting Codes/parts/00 detection.tex b/Advanced/Error-Correcting Codes/parts/00 detection.tex index 5c0e646..7b1d935 100755 --- a/Advanced/Error-Correcting Codes/parts/00 detection.tex +++ b/Advanced/Error-Correcting Codes/parts/00 detection.tex @@ -8,7 +8,7 @@ Say we have a sequence of nine digits, forming a partial ISBN-10: $n_1 n_2 ... n The final digit, $n_{10}$, is calculated as follows: $$ - \Biggr( \sum_{i = 1}^{9} i \times n_i \Biggl) \text{ mod } 11 + \Biggr( \sum_{i = 1}^{9} (11 - i) \times n_i \Biggl) \text{ mod } 11 $$ If $n_{10}$ is equal to 10, it is written as \texttt{X}.