Vector Operations in the Three Coordinate Systems Cartesian a a a a ------ u x ------ u y ------ u z x y z A A A • A ---------x ---------y ---------z x y z A A A A A A A ⎛ ---------z ---------y⎞ u x ⎛ ---------x ---------z⎞ u y ⎛ ---------y ---------x⎞ u z ⎝ y ⎠ ⎝ ⎠ ⎝ z z x x y ⎠ 2 2 2 2 a -------a- -------a- -------a2 2 2 x y z Cylindrical a 1 a a a ------ u --- ------- u ------ u z z A 1 ( A ) 1 A - --- ----------- ---------z • A --- ----------------- z A A A 1 Az 1 ( A ) A ⎞ - ----------⎞ u ⎛ --------- ---------z⎞ u --- ⎛ ---------------- A ⎛ --- ---------- ---------⎠ u z ⎝ ⎝ z ⎝ z ⎠ ⎠ a ⎛⎝ --------⎞⎠ 2 2 ' 2 1 1 a a --- ---------------------- ----2- --------2- -------a2 z Spherical a 1 a 1 a a ------ u r --- -------- u ------------- -------- u r r r sin 2 1 ( r Ar ) 1 ( A sin ) 1 A - ------------- -------------------------- ------------- ----------- • A ----2 ------------------- r r sin r sin r 1 ( sin A ) A ⎞ A ------------- ⎛ ------------------------- ---------⎠ u r r sin ⎝ ( r A )⎞ 1 ( r A ) A r⎞ 1 1 Ar - ---------------- --- ⎛ ---------- ----------⎠ u --- ⎛⎝ ---------------- ---------⎠ u ⎝ r r sin r r 2 a a ⎛ r --------⎞ ⎛⎝ sin --------⎞⎠ 2 1 1 ⎝ r ⎠ 1 a---------------------------------------------------- a ----2 ------------------------ --------------2 2 2 2 r r r sin r sin 2