import math


def pol2cart(r, phi):
    """
    Convert from polar (rho, phi)
    to cartesian (x, y) coordinates.

    Parameters
    ----------
    r : float
        Radial distance to origin.
        (Unit: m)
    phi : float
        Azimuthal angle.
        (Unit: degrees)
    """
    x = r * math.cos(math.radians(phi))
    y = r * math.sin(math.radians(phi))
    return(x, y)