With MACD you need to set three parameters: period of the shorter EMA of price; period of the longer EMA of price; period of the EMA of MACD, used for the Signal line.
https://www.macroption.com/macd/
There is a difference between the terms “undefined” and “indeterminate. 0^0 is undefined, not indeterminate. In limits what you see as 0^0 is actually (0tending)^ (0 tending). 0 tending means, the number tends to zero, but doesn't really take the value 0. ... Now let me answer by assuming the question to be, why 0^0 is undefined?
https://www.quora.com/What-does-it-mean-to-converge-in-calculus
The basic steps for using the ratio test to find the radius of convergence: Form a ratio of a n + 1/a n, then simplify. Take the absolute value of the ratio and the limit as n → ∞ Use the table below to find R.
https://www.calculushowto.com/calculus-definitions/interval-of-convergence-radius-circle/
Solutions The ratio is negative 1/3 and the sum of the series is The ratio is 2/3, but the series does not start with the first term 1, so The ratio is 1/5 and the sum is
https://www.varsitytutors.com/hotmath/hotmath_help/topics/infinite-geometric-series
pdf for "converge or diverge calculator".(Page 1 of about 18 results)