Matlab Intro to User-Defined Functions

1. Download the quadratic.m file from Canvas and make sure the file is in today's directory.

**quadratic.m file:

function [root1, root2] = quadratic(a, b, c) % [root1, root2] = quadratic(a, b, c) % Solves the roots of a quadratic expression using the known coefficeints % a*x^2 + b*x + c % a, b, and c are the inputs to this function and the two roots are the % output

root1 = (-b + sqrt(b.^2 - 4.*a.*c))./(2.*a); root2 = (-b - sqrt(b.^2 - 4.*a.*c))./(2.*a);

end

**

2. Solve for the roots of the following polynomials:

A. x² + 4x + 2

B. 3x² + 2x

C. 2x² + 4