### Navigation

- index
- modules |
- next |
- previous |
- NumPy v1.3 Manual (DRAFT) »
- NumPy Reference »
- Routines »

# Polynomials

## Basics

`poly1d` | A one-dimensional polynomial class.
`polyval` (p, x) | Evaluate a polynomial at specific values.
`poly` (seq_of_zeros) | Return polynomial coefficients given a sequence of roots.
`roots` (p) | Return the roots of a polynomial with coefficients given in p.

## Fitting

`polyfit` (x, y, deg[, rcond, full]) | Least squares polynomial fit.

## Calculus

`polyder` (p[, m]) | Return the derivative of the specified order of a polynomial.
`polyint` (p[, m, k]) | Return an antiderivative (indefinite integral) of a polynomial.

## Arithmetic

`polyadd` (a1, a2) | Returns sum of two polynomials.
`polydiv` (u, v) | Returns the quotient and remainder of polynomial division.
`polymul` (a1, a2) | Returns product of two polynomials represented as sequences.
`polysub` (a1, a2) | Returns difference from subtraction of two polynomials input as sequences.

## Warnings

`RankWarning` | Issued by polyfit when Vandermonde matrix is rank deficient.

### Navigation

- index
- modules |
- next |
- previous |
- NumPy v1.3 Manual (DRAFT) »
- NumPy Reference »
- Routines »