Curve fitting, roots, partial fraction expansions

Polynomials are equations of a single variable with nonnegative integer exponents. MATLAB® represents polynomials with numeric vectors containing the polynomial coefficients ordered by descending power. For example, [1 -4 4] corresponds to x2 - 4x + 4. For more information, see Create and Evaluate Polynomials.


poly Characteristic polynomial or polynomial with specified roots
polyeig Polynomial eigenvalue problem
polyfit Polynomial curve fitting
residue Partial fraction expansion (partial fraction decomposition)
roots Polynomial roots
polyval Polynomial evaluation
polyvalm Matrix polynomial evaluation
conv Convolution and polynomial multiplication
deconv Deconvolution and polynomial division
polyint Polynomial integration
polyder Polynomial differentiation
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