<html lang="en"> <head> <title>Polynomial Manipulations - GNU Octave</title> <meta http-equiv="Content-Type" content="text/html"> <meta name="description" content="GNU Octave"> <meta name="generator" content="makeinfo 4.13"> <link title="Top" rel="start" href="index.html#Top"> <link rel="prev" href="Sets.html#Sets" title="Sets"> <link rel="next" href="Interpolation.html#Interpolation" title="Interpolation"> <link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage"> <meta http-equiv="Content-Style-Type" content="text/css"> <style type="text/css"><!-- pre.display { font-family:inherit } pre.format { font-family:inherit } pre.smalldisplay { font-family:inherit; font-size:smaller } pre.smallformat { font-family:inherit; font-size:smaller } pre.smallexample { font-size:smaller } pre.smalllisp { font-size:smaller } span.sc { font-variant:small-caps } span.roman { font-family:serif; font-weight:normal; } span.sansserif { font-family:sans-serif; font-weight:normal; } --></style> </head> <body> <div class="node"> <a name="Polynomial-Manipulations"></a> <p> Next: <a rel="next" accesskey="n" href="Interpolation.html#Interpolation">Interpolation</a>, Previous: <a rel="previous" accesskey="p" href="Sets.html#Sets">Sets</a>, Up: <a rel="up" accesskey="u" href="index.html#Top">Top</a> <hr> </div> <h2 class="chapter">28 Polynomial Manipulations</h2> <p>In Octave, a polynomial is represented by its coefficients (arranged in descending order). For example, a vector <var>c</var> of length N+1 corresponds to the following polynomial of order <var>N</var> <pre class="example"> p(x) = <var>c</var>(1) x^<var>N</var> + ... + <var>c</var>(<var>N</var>) x + <var>c</var>(<var>N</var>+1). </pre> <ul class="menu"> <li><a accesskey="1" href="Evaluating-Polynomials.html#Evaluating-Polynomials">Evaluating Polynomials</a> <li><a accesskey="2" href="Finding-Roots.html#Finding-Roots">Finding Roots</a> <li><a accesskey="3" href="Products-of-Polynomials.html#Products-of-Polynomials">Products of Polynomials</a> <li><a accesskey="4" href="Derivatives-_002f-Integrals-_002f-Transforms.html#Derivatives-_002f-Integrals-_002f-Transforms">Derivatives / Integrals / Transforms</a> <li><a accesskey="5" href="Polynomial-Interpolation.html#Polynomial-Interpolation">Polynomial Interpolation</a> <li><a accesskey="6" href="Miscellaneous-Functions.html#Miscellaneous-Functions">Miscellaneous Functions</a> </ul> </body></html>