1

Formula Sheet (taken principally from D. J. Griffiths: Introduction to Electrodynamics, Prentice Hall)

2

( ) ( ) ( )

( ) ( ) ( ) ( ) ( )

( ) ( ) ( ) ( ) ( )

( ) ( ) ( )[ ] ( )[ ]

( ) ( ) ( )[ ] ( )[ ]

( ) ( ) ( )[ ] ( )[ ]BABABA

BABABA

BABABA

BABABA

BABABA

−+−=−

−+=+

±=±

=±

±=±

=

2

1

2

1

2

1

2

1

2

1

2

1

sinsin2coscos

coscos2coscos

cossin2sinsin

sinsincoscoscos

sincoscossinsin

cossin22sin

∓

∓

θθθ