public static LineFr Vertical(Fraction x)
{
var p = new PointFr(x, Fraction.Zero);
return(new LineFr(p, p.Translate(0, 1)));
}
public static LineFr Horizontal(Fraction y)
{
var p = new PointFr(Fraction.Zero, y);
return(new LineFr(p, p.Translate(1, 0)));
}
