conatus.expert.CylindricalCoordinates

class conatus.expert.CylindricalCoordinates(azimuth, radius, axial)

Bases: CoordinateSystem

(phi, r, z) for pipes and periodic cylinders.

Metric dr^2 + r^2 dphi^2 + dz^2. Same regular radial bases as PolarCoordinates (the z component of a vector is a scalar for the regularity, spin 0); z is expanded in a Fourier series. Nothing is ever divided by r + eps.

Parameters:

• azimuth (str)

• radius (str)

• axial (str)

kind = 'Cylindrical'

curvilinear = True

singularity = 'r = 0 (axis)'

scale_factors()

Return type:

tuple

metric()

Return type:

str

regularity()

Return type:

str

explain()

Return type:

str