>>In most of the English speaking world it is not >>considered polite to open letters to a Mr. Joel >>Spolsky by writing "Dear Spolsky." One might >>write "Dear Mr. Spolsky," or "Dear sir," or >>perhaps, "Hi Joel!"
In this part of the English speaking world we would write "Dear Sir:".
>>In most of the English speaking world it is not >>considered polite to open letters to a Mr. Joel >>Spolsky by writing "Dear Spolsky." One might >>write "Dear Mr. Spolsky," or "Dear sir," or >>perhaps, "Hi Joel!" In this part of the English speaking world we would write "Dear Sir:".
How about c^2? (C squared)