exa3_15.m

来自「有关matlab r2007的实用教程」· M 代码 · 共 9 行

f=sym('2*x^2+x^3-3*x+5')    % f is the symbolic polynomials

n=sym2poly(f)    % extract eht numeric coefficient vector

poly2sym(n)    % recreate the polynomials in x (the default)

poly2sym(n,' s ')    % recreate the polynomials in s