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As I plan to study maths at Degree Level I have decided to do a maths based project.

My two basic ideas are....

How does Maths keep our Money safe?

Here I would look into the Mathematics behind credit card transactions & online money trnasfers & the encryptions etc used to ensure it cannot be obtained & understood.

Or,

How the golden ratio is found in nature - something about fibonachis.

I know nothing about the above subjects (which is the point of the qualification) so before I decide I was wondering if anyone can help me out with the first, the credit card one. I have 5 books about divine proportion but very little on encryption.

Is there enough maths behind it to do 6 months of research & understand it, I only have AS Maths in college so my theory will be minimal I assume. I do have a contact who does this for a living but cannot get in touch with him for a while so I am looking for other sources of information.

So if anyone knows any of the basics behind the transactions or knows where I can read up on it I would appreciate it. Got a few websites saved to have a read through tomorrow.

Cheers

James