dbesselj

deeptrack.backend.polynomials.dbesselj(l: int | float, x: int | float | ndarray) → float | ndarray

The first derivative of the Bessel polynomial of the 1st kind.

Parameters

lint or float

Polynomial order.

xint or float or np.ndarray

The point(s) where the polynomial is evaluated.

Returns

float or np.ndarray

The polynomial evaluated at x.