Polynomials in MATLAB Last Updated : 09 May, 2022 Comments Improve Suggest changes Like Article Like Report A polynomial is an expression that is made up of variables, constants, and exponents, that are combined using mathematical operations such as addition, subtraction, multiplication, and division (No division operation by a variable). Polynomials in MATLAB are represented as row of a vector containing coefficients ordered by descending powers. For example, the equation G(x) = 2x4 + 3x3 - 4x + 1 could be represented as gfg = [2 3 -4 1]. For evaluating Polynomials we use function polyval( ), It evaluates the polynomial gfg at each point in x. Example 1: Matlab % MATLAB code for example: % to evaluate our polynomial gfg = % 2x4 + 3x3 - 4x + 1, at x = 4, gfg = [2 3 0 -4 1]; GFG= polyval(gfg,4) Output: Example 2: Matlab % MATLAB code for evaluating a polynomial with % matrices as variables, we use polyvalm( ) function. gfg = [2 3 0 -4 1]; X = [1 2 -3 4; 2 -5 6 3; 3 1 0 2; 5 -7 3 8]; GFG= polyvalm(gfg, X) Output: Example 3: Matlab % MATLAB code for finding roots % of polynomial : gfg= 2x4 + 3x3 - 4x + 1, gfg = [2 3 0 -4 1]; GFG = roots(gfg) Output: Comment More infoAdvertise with us Next Article Polynomials in MATLAB R rajzzz Follow Improve Article Tags : Software Engineering MATLAB-Maths Similar Reads polyval() in MATLAB polyval is a built-in function in MATLAB that allows you to evaluate a polynomial at a specific point. It evaluates the polynomial let's p at the points in x and it returns the corresponding function values in y . The syntax for polyval is as follows: Syntax: y = polyval(p,x) %returns the value of a 2 min read polyfit() in MATLAB Polyfit is a function in MATLAB that fits a polynomial to a set of data points. It takes in three arguments: x: a vector of x-coordinates of the data pointsy: a vector of y-coordinates of the data pointsn: the degree of the polynomial polyfit returns a vector of coefficients representing the fitted 2 min read Polymorphism in MATLAB As with all other programming languages, MATLAB is also a programming language specially designed for Engineers. It was designed by Mathworks. Like all other programming languages, it also supports the concept of Object-oriented programming language (OOPs). The main concept is called Polymorphism. i 2 min read Polynomial Formula The polynomial Formula gives the standard form of polynomial expressions. It specifies the arrangement of algebraic expressions according to their increasing or decreasing power of variables. The General Formula of a Polynomial:f(x) = an​xn + an−1​xn−1 + ⋯ + a1​x + a0​Where,an​, an−1​, …, a1​, a0​ a 5 min read Multiplying Polynomials Polynomial multiplication is the process of multiplying two or more polynomials to find their product. It involves multiplying coefficients and applying exponent rules for variables.When multiplying polynomials:Multiply the coefficients (numerical values).Multiply variables with the same base by add 8 min read Like