public class TriangleWave extends Waveform {
    public TriangleWave() { }

    protected double _at(double t) {
        return 1 + (2 * (- Math.abs(t - 0.5)));
    }
}

@@ -130,9 +130,9 @@
  + (
-2
+4
  * (

Fix quiet triangle waves