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Math Help - Finite Field

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    Finite Field

    What is meant by an element n is square in the finite field Fp.
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  2. #2
    MHF Contributor Swlabr's Avatar
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    Quote Originally Posted by makenqau View Post
    What is meant by an element n is square in the finite field Fp.
    What is the context? How is the fact that it is square used?

    It could mean ` x=y^2 for some y \in \mathbb{F}_p'. This `halves' the underlying multiplicative group (the underlying group is cyclic of even order, and so with a bit of work you can see that precisely half of your non-zero elements are squares).
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