Preview Ruby 4.1 is a preview. It can change before the final release. Switch to Ruby 4.0 →

instance method

Rational#negative?

() -> bool

rat.negative? → true or false

static VALUE
nurat_negative_p(VALUE self)
{
    get_dat1(self);
    return RBOOL(INT_NEGATIVE_P(dat->num));
}

Returns true if rat is less than 0.

See also #magnitude #numerator #inspect #positive? also in 4.0 · 3.4 · 3.3 · 3.2 · 3.1 · 3.0