Inverse Oblate Spheroidal Coordinates
A system of coordinates obtained by inversion of the oblate spheroids and one-sheeted hyperboloids in oblate
spheroidal coordinates. The inverse oblate spheroidal coordinates
are given by the transformation equations
|
(1)
| |||
|
(2)
| |||
|
(3)
|
where
,
, and
.
Surfaces of constant
are given by
the cyclides of rotation
![]() |
(4)
|
surfaces of constant
by the cyclides
of rotation
![]() |
(5)
|
and surfaces of constant
by the half-planes
|
(6)
|
The metric coefficients are given by
|
(7)
| |||
|
(8)
| |||
|
(9)
|


asymptotes of erf(x)