Deprecated: Non-static method Validate::number() should not be called statically in /var/www/lib/php/DU_Math/terms.php on line 108

Fatal error: Uncaught Exception: Invalid value for ayear. in /var/www/lib/php/DU_Math/terms.php:55 Stack trace: #0 /home/web/pages/projects/index.php(49): DUTerms->__construct(Object(PDO), Array) #1 {main} thrown in /var/www/lib/php/DU_Math/terms.php on line 55