1. Review
-
Fill in the table of coordinate transforms between spherical, rectangular, and cylindrical systems. Do this by extracting the relevant equations from the book and putting onto a single (nice) reference page either in the template below or your own reference system.
This will be handy for quick reference later. |
To→ ↓From |
cartesian | cylindrical | spherical |
---|---|---|---|
|
|||
|
|||
|
2. Notes
Figure 1. Remember your trigonometry? [1]
Inverse tangent can cause issues when the denominator becomes zero.
In Matlab and other languages, use
atan2(y, x)
or atan2d(y, x)
This yields the 4-quadrant result. Recall that otherwise there is a 180° ambiguity in the \(\tan^{-1}(\,)\).