vs:arithmetic -- vonuvoli Export (vonuvoli arithmetic)
number?;complex?;real?;rational?;integer?;exact-integer?;exact?;inexact?;zero?;positive?;negative?;finite?;infinite?;nan?;even?;odd?;not-number?;not-complex?;not-real?;not-rational?;not-integer?;not-exact-integer?;not-exact?;not-inexact?;not-zero?;not-positive?;not-negative?;not-finite?;not-infinite?;not-nan?;not-even?;not-odd?;<;<=;=;>=;>;not-<?;not-<=?;not-=?;not->=?;not->?;rationalize;numerator;denominator;make-rectangular;real-part;imag-part;make-polar;angle;magnitude;