Pseudo sinusoidal waveform II

Mr Stenzel, CEO of Waldorf Music GmbH, decided to disclose his excellent pseudo sinusoidal formula: 4x \cdot (1-|x|) .

Here is a plot of the function:


As you can see, this really looks like a sine wave! The following error plot reveals a maximum error of 0.056:


In terms of distortion, Mr. Stenzel is right. This function is 2.85 times better than the previous pseudo sine.


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