numpy.polynomial.hermite_e.hermesub — NumPy v1.13 Manual (original) (raw)
numpy.polynomial.hermite_e. hermesub(c1, c2)[source]¶
Subtract one Hermite series from another.
Returns the difference of two Hermite series c1 - c2. The sequences of coefficients are from lowest order term to highest, i.e., [1,2,3] represents the series P_0 + 2*P_1 + 3*P_2.
| Parameters: | c1, c2 : array_like 1-D arrays of Hermite series coefficients ordered from low to high. |
|---|---|
| Returns: | out : ndarray Of Hermite series coefficients representing their difference. |
Notes
Unlike multiplication, division, etc., the difference of two Hermite series is a Hermite series (without having to “reproject” the result onto the basis set) so subtraction, just like that of “standard” polynomials, is simply “component-wise.”
Examples
from numpy.polynomial.hermite_e import hermesub hermesub([1, 2, 3, 4], [1, 2, 3]) array([ 0., 0., 0., 4.])