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Sage in Simple Rings
Tim McLarnan, Earlham CollegeThis very short worksheet illustrates how easy it is to use Sage to do arithmetic in a variety of different rings. Hopefully the calculations here are more or less self-explanatory.
\newcommand{\Bold}[1]{\mathbf{#1}}4
\newcommand{\Bold}[1]{\mathbf{#1}}3
\newcommand{\Bold}[1]{\mathbf{#1}}(x + 3) \cdot (x + 4)
\newcommand{\Bold}[1]{\mathbf{#1}}(t^{2} - 2)
\newcommand{\Bold}[1]{\mathbf{#1}}(z - 1.41421356237310) \cdot (z + 1.41421356237310)
\newcommand{\Bold}[1]{\mathbf{#1}}(t - 2) \cdot (t^{2} + t + 5)
\newcommand{\Bold}[1]{\mathbf{#1}}(z - 2.00000000000000) \cdot (z^{2} + z + 5.00000000000000)
\newcommand{\Bold}[1]{\mathbf{#1}}(y - 2.00000000000000) \cdot (y + 0.500000000000000 - 2.17944947177034i) \cdot (y + 0.500000000000000 + 2.17944947177034i)