# What is x0 in calculus?

Category:
science
space and astronomy

The idea: Roughly, the limit is the value that f(

**x**) should assume when**x**=**x**_{0}. It is a prediction based on nearby**x**-values. Less roughly, to say the limit is L, you have this situation: The goal is to make f(**x**) close to L, as close as you might want.

Then, what does x0 mean in math?

The letter "**x**" is often used in algebra to **mean** a value that is not yet known. It is called a "variable" or sometimes an "unknown". In **x** + 2 = 7, **x** is a variable, but we can work out its value if we try! A variable doesn't have to be "**x**", it could be "y", "w" or any letter, name or symbol.

**function**is a rule or correspondence which associates to each number x in a set A a unique number f(x) in a set B. The set A is called the domain of f and the set of all f(x)'s is called the range of f.

Also to know is, what does a stand for in calculus?

h is a variable commonly used in the limit definition of a derivative: lim(h →0) ((f(x + h) - f(x))/h) a is a variable commonly used to represent the lower limit of a definite integral: the integral from a to b of f(x)

the limit of