PolynomialMod
 Usage
• PolynomialMod[poly, m] gives the polynomial poly reduced modulo m.
• PolynomialMod[poly, { ,  , ... }] reduces modulo all of the  .
Notes
• PolynomialMod[poly, m] for integer m gives a polynomial in which all coefficients are reduced modulo m. • Example: PolynomialMod[3x^2 + 2x + 1, 2]  . • When m is a polynomial, PolynomialMod[poly, m] reduces poly by subtracting polynomial multiples of m, to give a result with minimal degree and leading coefficient. • PolynomialMod gives results according to a definite convention; other conventions could yield results differing by multiples of m. • Unlike PolynomialRemainder, PolynomialMod never performs divisions in generating its results. • New in Version 2.
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