numpy.polydiv¶

numpy.polydiv(u,v)[source]¶

Returns the quotient and remainder of polynomial division.

The input arrays are the coefficients (including any coefficientsequal to zero) of the “numerator” (dividend) and “denominator”(divisor) polynomials, respectively.

Parameters:	u:array_like or poly1d Dividend polynomial’s coefficients. v:array_like or poly1d Divisor polynomial’s coefficients.
Returns:	q:ndarray Coefficients, including those equal to zero, of the quotient. r:ndarray Coefficients, including those equal to zero, of the remainder.

See also

poly,polyadd,polyder,polydiv,polyfit,polyint,polymul,polysub,polyval

Notes

Bothu andv must be 0-d or 1-d (ndim = 0 or 1), butu.ndim neednot equalv.ndim. In other words, all four possible combinations -u.ndim=v.ndim=0,u.ndim=v.ndim=1,u.ndim=1,v.ndim=0, andu.ndim=0,v.ndim=1 - work.

Examples

\frac{3x^2 + 5x + 2}{2x + 1} = 1.5x + 1.75, remainder 0.25

>>>x=np.array([3.0,5.0,2.0])>>>y=np.array([2.0,1.0])>>>np.polydiv(x,y)(array([ 1.5 ,  1.75]), array([ 0.25]))