Maths

A(t)=A'e^(-t/r)
where A(t) is the amount after time t, A' is the initial amount at t=0 and r is the decay time.

Give an interpretation of the parameter r.

1. 👍 0
2. 👎 0
3. 👁 89
1. r is the length of time required for the amount of A to decrease by a factor of 1/e

1. 👍 0
2. 👎 0
posted by drwls

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