Recent content by wxrebecca

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    Graduate Is Every Rootless Polynomial Over a Finite Field Prime?

    How to prove that a polynomial of degree 2 or 3 over a filed F is a prime polynomial if and only if the polynomial does not have a root in F? and i can't think of an example of polynomial of degree 4 over a field F that has no root in F but is not a prime polynomial. it says each...
  2. W

    Undergrad Laplace transform for system DFE

    it's the first one. but what's the differences between these two exactly?
  3. W

    Undergrad Laplace transform for system DFE

    I think it's several independent variables. However, the question didn't say so
  4. W

    Undergrad Laplace transform for system DFE

    dx/dt= -x+y dy/dt= 2x x(0)=0 y(0)=1 I'm not familiar how to solve a system like this. Somebody please help? Thanks
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    Undergrad What's the difference between polynomials and polynomial functions?

    What's the difference between polynomials (as elements of a ring of polynomials) and polynomial functions??