Const
FACTOR = Math.pow(0.9, 1 / DECAY) - 1= 19 / 81
$$\text{FACTOR} = \frac{19}{81}$$
FACTOR = 19 / 81 Copy
FACTOR = 19 / 81
FACTOR = Math.pow(0.9, 1 / DECAY) - 1= 19 / 81
$$\text{FACTOR} = \frac{19}{81}$$