User:Y5nw: Difference between revisions
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For a one-shot event that fires with a probability of <math>p</math> checked at an interval of <math>T</math> (e.g. tree growth), the expected amount of time <math>t</math> it takes for the event to fire is <math>E(t) = \frac{T}{p}</math>. | For a one-shot event that fires with a probability of <math>p</math> checked at an interval of <math>T</math> (e.g. tree growth), the expected amount of time <math>t</math> it takes for the event to fire is <math>E(t) = \frac{T}{p}</math>. | ||
Note that, in some definition tables in Minetest (e.g. ABMs), the probability is specified using the reciprocal of | Note that, in some definition tables in Minetest (e.g. ABMs), the probability is specified using the reciprocal of <math>p</math>. | ||
Calculations: Let | Calculations: Let <math>q := 1-p</math> be the probability of the event ''not'' firing at the next check. | ||
<math> | <math> | ||