Multivariable Calculus | Function Defination | Introducton to Function.


Calculus:-

Rate of Change that Depends on Limits,Derivative and Integration.

Multivariable Calculus:-

More then One 
Wheather       = Wind,Moisture,Temprature
Dependent          Independent

Function:-

Function is a Machine which take input and Produce output.
In MultiCalculus Function is a rule from a set x to a set y such that each element of x has a unique image in Y.
Example: this tree grows 20 cm every year, so the height of the tree is related to its age using the function h:
h(age) = age × 20
So, if the age is 10 years, the height is h(10) = 200 cm
Saying "h(10) = 200" is like saying 10 is related to 200. Or 10 → 200

Function of Several Variable:-

Function of Two Variable X Eg Y is a value that assign to each pair (x,y) in a given (Domain) a Unique Value of F.
Z=F(x,y)