Write a function function [x1, x2, flag] - myquad(a,b,c) that computes the roots

Question

Write a function function [x1, x2, flag] - myquad(a,b,c) that computes the roots of the quadratic equation ax2 + br + c = 0. The input arguments a, b and c (which may take any values) are the coefficicnts of the quadratic, and x1 and x2 arc the two roots (if they exist), which may the equal. The output argument flag must return the following values, according to the number and type of roots: You must use the usual formula for solving the roots of a quadratic equation that you learnt in your earlier math classes. You may NOT use any built-in MATLAB command for root-finding of polynomials. Show how your function works by feeding to it a variety of inputs. Your test cases must include inputs that trigger each of the above flags.

Explanation / Answer

function(x1,x2,flag)=myquad(a,b,c) a=input('enter the value of a:'); b=input('enter the value of b:'); c=input('enter the value of c:'); if(a==b&&b==c&&c==0) flag=99 end if(a==b&&b==0&&c!=0) flag=0 end if(a=0&&b!=0) flag=1 end if((b^2-4*a*c)>0) flag=2 end end

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