vs:arithmetic -- vonuvoli Category number?;complex?;real?;rational?;integer?;exact-integer?;exact?;inexact?;zero?;positive?;negative?;finite?;infinite?;nan?;even?;odd?;abs;floor;ceiling;round;truncate;exact;inexact;square;sqrt;exact-integer-sqrt;exp;log;sin;cos;tan;asin;acos;atan;floor/;floor-quotient;floor-remainder;truncate/;truncate-quotient;truncate-remainder;expt;+;-;*;/;gcd;lcm;min;max;<;<=;=;>=;>;rationalize;numerator;denominator;make-rectangular;real-part;imag-part;make-polar;angle;magnitude;