HELLO EVERYONE, could anyone please share a very good brief and simple notes on CALCULUS (differentiatin and integration) of all types, I mean the partial one, the rules and etc. PDF file will be more convenient, or you could just post me a link about the notes.
Please work me, as in your cooperation, I'm a slow learner. THANKS in advance!

Please work me, as in your cooperation, I'm a slow learner. THANKS in advance!