How can the formulation of polynomial be done from its roots?(a) poly(r), r is a row vector, containing the roots of the polynomial(b) poly([roots as a coloumn vector])(c) poly([roots as a row vector])(d) poly([roots in descending order as a coloumn vector])This question was posed to me by my college professor while I was bunking the class.My enquiry is from Algebra topic in section MATLAB Basics of MATLAB

How can the formulation of polynomial be done from its roots?(a) poly(

1.	How can the formulation of polynomial be done from its roots?(a) poly(r), r is a row vector, containing the roots of the polynomial(b) poly([roots as a coloumn vector])(c) poly([roots as a row vector])(d) poly([roots in descending order as a coloumn vector])This question was posed to me by my college professor while I was bunking the class.My enquiry is from Algebra topic in section MATLAB Basics of MATLAB
Answer» Right option is (b) poly([roots as a COLOUMN vector]) The BEST I can explain: To FIND the roots, one has to store the given roots in a 1*n column vector, SAY p, and then extract the co-efficients of the polynomial by typing poly(p). This would return the co-efficients of the polynomial in descending order from left to right.

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