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  • j natarajamoorthy thinks this is interesting:

the number e is around 2.718 and has many practical applications. A very common application is growth calculation for money. Suppose you have $5,000 deposited in a bank with continuously compounded interest at the rate of 3%, then we can use the following formula to model the growth of our deposit:

From

Cover of Principles of Data Science

Note

looks like the result is wrong. Author calculating that the money will be doubled within 2.3 years.