Tideline

Slide four controls to lay your wave exactly over the target — and earn more by matching it with the fewest parameters.

How to play

A target wave is plotted on the grid. Adjust amplitude, period, phase and offset until your curve overlaps it, watching the live root-mean-square error fall. The fewer parameters you move from their defaults, the higher you score.

• Tune the four sliders to match the target sine wave
• Watch the RMS error readout shrink as your curve aligns
• Using fewer parameters earns a bigger score
• Submit your match when the curves overlap

Game modes

• Clear: the target curve is drawn for you to trace
• Noise: the curve is hidden, leaving only scattered dots so you must infer the period
• Daily and Practice rounds

Controls

• Desktop: drag the four sliders; Reset wave and New start fresh
• Phone & tablet: drag the sliders by touch to tune each parameter

Tips & strategy

• Lock in the period first — it controls the spacing of the peaks and is hardest to read on a noise round
• Leave parameters you don't need at their defaults; an unmoved slider is worth points at submission

What you'll learn

Tideline teaches the anatomy of a sine wave — how amplitude, period and phase shape it.

• Skills: trigonometric functions, sine waves, amplitude, period and phase
• Best for: roughly grades 10–12 (ages 15+)
• For parents & teachers: the anatomy of a sine wave.

About Tideline

Tideline is an original free browser math game about the anatomy of a sine wave, teaching how amplitude, period, phase and offset each reshape a curve through direct, visual tuning.

A free, original browser game on PlayPendium — no download, no install. Browse all games →