Polynomials
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.
Functions
poly | Polynomial with specified roots or characteristic polynomial |
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 |
Topics
Create and Evaluate Polynomials
This example shows how to represent a polynomial as a vector in MATLAB® and evaluate the polynomial at points of interest.
Calculate polynomial roots numerically, graphically, or symbolically.
Integrate and Differentiate Polynomials
This example shows how to use the polyint and polyder functions to analytically integrate or differentiate any polynomial represented by a vector of coefficients.
This example shows how to fit a polynomial curve to a set of data points using the polyfit function.
There are many functions in MATLAB that are useful for data fitting.
