Homepage article display limit

Does anyone know, how to change article display limit on the homepage?

By default it is only display two articles. I want to display more than 2.

Thanks for any help.

$iArticlesLimit = (int)getParam('number_articles');

Thanks. Found it in table named 'GlParams'

too bad that admin can not config any setting related Articles.

Possible, some settings have page with settings, several hided ..