End of Life Ruby 3.0 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →

instance method

Float#to_f

float.to_f → self

static VALUE
flo_to_f(VALUE num)
{
    return num;
}

Since float is already a Float, returns self.

See also #to_d #to_i #round #to_int also in 4.1 · 4.0 · 3.4 · 3.3 · 3.2 · 3.1