Polish notation of an expression explained

Hello guys and welcome back to another video! Today I will be explaining the polish notation, prefix, infix and postfix of an expression. The Polish notation was invented by the mathematician Łukasiewicz as a simpler way to write expressions, without parentheses. Donate: https://www.paypal.me/HowToIT Website: https://goo.gl/J3PoVt Facebook: https://goo.gl/QQ6Ux0