Step 2: Read the instructions for posting questions on this site.
Step 3: Repeat step 2 until you understand completely.
Step 4: Follow the instructions for posting, namely: Provide one fully described question, telling what parts you don't understand and what you have tried so far -- like it says in the instructions. Remember, do not post in all caps. It is the electronic equivalent of shouting and is both annoying and rude.
John
Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it