Plot points with coordinates where \(x\) and \(y\) are equal. Three points are sufficient, but more can be plotted. Draw a line through the plotted points. If \(x\) is positive, \(y\) is negative. If ...
The 2025 Polar Loop is a screenless fitness tracker that competes with Whoop and the Amazfit Helio Strap—but doesn't quite beat either.