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The operators (m_solve) and (m_roots) are for modular polynomials and modular polynomial systems.6 The moduli need not be primes. m_solve requires a modulus to be set. m_roots takes the modulus as a second argument. For example:
on modular; setmod 8; m_solve(2x=4); -> {{X=2},{X=6}} m_solve({x^2-y^3=3}); -> {{X=0,Y=5}, {X=2,Y=1}, {X=4,Y=5}, {X=6,Y=1}} m_solve({x=2,x^2-y^3=3}); -> {{X=2,Y=1}} off modular; m_roots(x^2-1,8); -> {1,3,5,7} m_roots(x^3-x,7); -> {0,1,6}
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