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There are two main ways mathematics is used: Coding - the tranforming of a communication signal (say someones voice on a telephone or an email) in to a form that can be transported over a long distance easily. Read more: http://en.wikipedia.org/wiki/Coding Encryption - changing a signal like that above in to a completely unreadably message only decryptable by the person who was intended to receive it. Read more: http://en.wikipedia.org/wiki/Encryption

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16y ago

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