Severity: Warning
Message: mkdir(): Permission denied
Filename: drivers/Session_files_driver.php
Line Number: 137
Backtrace:
File: /home/estarbk/public_html/dev.estar-bk.com/application/controllers/Main.php
Line: 8
Function: __construct
File: /home/estarbk/public_html/dev.estar-bk.com/index.php
Line: 315
Function: require_once
Severity: Warning
Message: session_start(): Failed to initialize storage module: user (path: /var/cpanel/php/sessions/alt-php74)
Filename: Session/Session.php
Line Number: 137
Backtrace:
File: /home/estarbk/public_html/dev.estar-bk.com/application/controllers/Main.php
Line: 8
Function: __construct
File: /home/estarbk/public_html/dev.estar-bk.com/index.php
Line: 315
Function: require_once
The signs (⊕) and (⊗) are used to differentiate from ordinary addition and multiplication respectively. For example, in modulo 5, we can evaluate 7 ⊕ 12 = 19 = 4 (mod 5) = 4 and 7 ⊗ 12 = 84 = 4 (mod 5) = 4.
We use the set of numbers {0, 1, 2, 3, 4} to draw the table for arithmetic modulo 5.
For modulo 8, we use the set of numbers {0, 1, 2, 3, 4, 5, 6, 7} to draw the table.