What do we exactly mean by partial derivatives?

Question

What do partial derivatives really mean, I mean what means calculating it and why is it calculated the way it is?

Answer 1

Ok

Answer 2

Walt Theodore What is the formula for the partial derivative?

Answer 3

What is that weird symbol

Answer 4

Is it my perception or what

Answer 5

Thanks I did not understand but thanks for your efforts I think you know it but are not able to express it correctly, I will search the internet for this

Answer 6

Yeah ✌