**Contents**show

## What is combine function?

Section 3-6 : Combining Functions. The topic with functions that we need to deal with is combining functions. For the most part this means **performing basic arithmetic (addition, subtraction, multiplication, and division)** with functions. … Given two functions f(x) and g(x) we have the following notation and operations.

## Is it possible to add another function in JavaScript?

**Nested functions****A function** is called “nested” when it is created inside another function. It is easily possible to do this with JavaScript. … Nested functions are quite common in JavaScript. What’s much more interesting, a nested function can be returned: either as a property of a new object or as a result by itself.

## What is JavaScript call and apply?

call and apply are very similar—they invoke a function with a specified this context, and optional arguments. The only difference between call and apply is that call requires the arguments to **be passed** in one-by-one, and apply takes the arguments as an array.

## Can you put a function inside a function C++?

**Yes**, we can call a function inside another function.

## What is difference between VAR let and Const in JavaScript?

var declarations are globally scoped or function scoped while let and **const are block scoped**. var variables can be updated and re-declared within its scope; let variables can be updated but not re-declared; const variables can neither be updated nor re-declared.

## How do you multiply two functions together?

To multiply a function by another function, **multiply their outputs**. For example, if f (x) = 2x and g(x) = x + 1, then fg(3) = f (3)×g(3) = 6×4 = 24. fg(x) = 2x(x + 1) = 2x^{2} + x.

## How do I combine Fgx?

The composition (f ° g)(x) means “evaluate g at x, then evaluate f at the result g(x)”. The product (f*g)(x) means “evaluate f and g at x and multiply the results”.