## What is the special function in mathematics?

Special functions are particular mathematical functions that have more or less established names and notations due to their importance in mathematical analysis, functional analysis, geometry, physics, or other applications.

### How do you know if a polynomial is orthogonal?

(c) A polynomial p \= 0 is an orthogonal polynomial if and only if (p,q) = 0 for any polynomial q with deg q < deg p. p(x)q(x)dx. Note that (xn,xm) = 0 if m + n is odd. Hence p2k(x) contains only even powers of x while p2k+1(x) contains only odd powers of x.

**What are orthogonal polynomials and why are they important?**

Just as Fourier series provide a convenient method of expanding a periodic function in a series of linearly independent terms, orthogonal polynomials provide a natural way to solve, expand, and interpret solutions to many types of important differential equations.

**What are the types of special functions?**

Traditionally, special functions are divided into two classes: (a) elementary functions and (b) higher transcendental functions.

## Why do we use polynomial regression?

Polynomial Regression Uses It provides a great defined relationship between the independent and dependent variables. It is used to study the isotopes of the sediments. It is used to study the rise of different diseases within any population. It is used to study the generation of any synthesis.

### Why are special functions special?

One reason for the continuing popularity of special functions could be that they enshrine sets of recognizable and communicable patterns and so constitute a common currency. Compilations like A&S and the DLMF assist the process of standardization, much as a dictionary enshrines the words in common use at a given time.

**What is orthogonal in maths?**

Orthogonal is commonly used in mathematics, geometry, statistics, and software engineering. Most generally, it’s used to describe things that have rectangular or right-angled elements. More technically, in the context of vectors and functions, orthogonal means “having a product equal to zero.”

**What is polynomial function in general mathematics?**

A polynomial function is the simplest, most commonly used, and most important mathematical function. These functions represent algebraic expressions with certain conditions. They also cover a wide number of functions.