# Expressions and polynomials

 all_variables All the variables of an expression arguments Arguments of an expression belongs_to_domain? Checks if a point belongs to domain coefficient_domain Coefficient domain of a polynomial coefficients Coefficients of a polynomial collect Collect terms in a polynomial degree Degree of a polynomial depend Dependencies of an expression discontinuities Discontinuities of a function expand Expand an expression expression_to_set Converts an expression to a set syntax extended_gcd Extended greatest common divisor algorithm for polynomials factor_in_square_free_multiplicity Factorization of a polynomial in square free polynomials factor_in_square_free Factorization of a polynomial in square free polynomials factor Factorization of a polynomial gcd Greatest common divisor of polynomials intervals Constructor of intervals leading_coefficient Leading coefficient of a polynomial leading_term Leading term of a polynomial lcm Least common multiple of polynomials monic? Checks if a polynomial is monic monic Transformation to a monic polynomial multiplicity Multiplicity of a root norm_1 1-norm of a polynomial norm_2 2-norm of a polynomial norm_infinity $\infty$-norm of a polynomial n_terms Number of terms of an expression n_variables Number of variables of an expression partial_fractions Partial fractions decomposition quotient_and_remainder Quotient and remainder of euclidean division quotient Quotient of euclidean division remainder Remainder of euclidean division roots_to_polynomial Polynomial with given roots roots Roots of a polynomial simplify_radical Simplify an expression with radicals simplify Simplify an expression square_free? Checks if exists a square-free factorization substitute Substitute a variable by an expression tail Tail of a polynomial variables Variables of an expression variable Variable of an expression