What does this tool do?

It plots 23/28/33 day sine waves from a birth date and marks near-zero critical days.

No. It is a traditional recreational model.

What is a critical day?

A channel whose sine is within 0.08 of zero.

Physical 23, emotional 28 and intellectual 33 day sine waves for the next 30 days

Birth date

Start from

Classic 23/28/33 day cycles from a birth date. Critical days are near-zero crossings. SVG overlay, JSON export.

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