The same lag correction as DEMA, one step further.
Three EMAs combined: 3×EMA − 3×EMA(EMA) + EMA(EMA(EMA)). It hugs price tighter than DEMA.
Worked out by the same code the builder uses, on stored daily candles. Move a setting and the line moves with it. This is what happened, not what will happen.
Gate: Price close is above TEMA(21).
The tighter a line follows price, the less it tells you that price does not already. On noisy data TEMA is close to the price itself.
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