January 22, 2014

    The best way I think to understand the Euclidean Greatest Common Divisor algorithm is to think big. For the GCD of two numbers, a and b, rather than think about the few numbers, a, b, a%b, b%(a%b), and so forth, think about all numbers of the form i*a+j*b. Note that a%b = i*a+j*b, for some […]

  • Addresses

    January 22, 2014

    For computers to communicate, the link and the network layer both have addresses, and they are not the same. The link layer (layer 2) has a MAC address, and the network layer (layer 3) has an IP address. This language is specific to the particular implementation technologies. If IP is not your layer 3, then […]

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