Try a google search. It always throws up a few (thousand ;-) hits for me and I just sift through them putting together an answer.
You need to be careful, though. The first hit may not be accurate, may not be apposite, may not have been written by someone who actually knows what they are talking about, etc. That's why you need to read a few hits and then form your own opinion.
And there's always the chance that no-one else actually knows the answer, or has posted it to the web, or it has been crawled by your search engine.
In this particular case, COT Test, context is important.
You don't want to know about baby sleeping arrangements (where does a baby ape sleep? In an Apricot), do you?
And you don't want to know about Senator Frist running for President in
2008.And it's not maths, it's Telecoms, so try this:
And if that doesn't answer your question, you can follow my advice above.
Be Lucky.
Anything more complicated than two tin cans and some wet string needs an expert, a degree and a three week residential training course in the Caymans.