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