numpy.polynomial.laguerre.lagpow

numpy.polynomial.laguerre.lagpow(c, pow, maxpower=16) [source]

Raise a Laguerre series to a power.

Returns the Laguerre series c raised to the power pow. The argument c is a sequence of coefficients ordered from low to high. i.e., [1,2,3] is the series P_0 + 2*P_1 + 3*P_2.

Parameters

carray_like

1-D array of Laguerre series coefficients ordered from low to high.

powinteger

Power to which the series will be raised

maxpowerinteger, optional

Maximum power allowed. This is mainly to limit growth of the series to unmanageable size. Default is 16

Returns

coefndarray

Laguerre series of power.

See also

lagadd, lagsub, lagmulx, lagmul, lagdiv

Examples

>>> from numpy.polynomial.laguerre import lagpow
>>> lagpow([1, 2, 3], 2)
array([ 14., -16.,  56., -72.,  54.])