# Arithmetic

 absolute The absolute value of a number base_change Change of base (decimal, binary...) bezout Bezout identity bit Bit expression of a number ceil Ceiling function chinese_theorem Chinese theorem coefficients compare Compare function decimal Decimal part of a number denominator Denominator of a fraction divisors_mu_moebius Divisors of $\mu$-Moebius function divisors Divisors of a number extended_gcd Extended greatest common divisor algorithm factor Factorization of a number floor Floor function gcd Greatest common divisor of integers lcm Least common multiple of integers mod Modulo operator negative? Checks if a number is negative numerator Numerator of a fraction phi_euler $\varphi$-Euler function positive? Checks if a number is positive prime? Checks if a number is prime prime_power Prime power of a number prime A prime number quotient_and_remainder Quotient and remainder of euclidean division quotient Quotient of euclidean division rationalize Rationalize a fraction with square roots remainder Remainder of euclidean division round Rounding to the nearest integer sign0 Sign function sign Sign function square? Square of a number trunc Trunc a number to_decimal To decimal form