What does it mean e equals 2.18728.?

Answer 1

' e ' is a number that keeps coming up in various processes in Physics, Math, Chemistry, and Engineering. Its value is approx. 2.718281828459045.

The statement "e equals 2.18728" means that

1). You have rounded the number to five decimal places.

2). You have made a mistake copying even that much.

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If you invest one dollar at 100%, you will have two dollars at the end of one year as per the following: n (1 + 1/n)^n

1 2 2 2.25 3 2.37 5 2.488 10 2.5937 100 2.7048 1,000 2.7169 10,000 2.71814 100,000 2.718268 1,000,000 2.7182804... If the interest is taken at infinity intervals, you will get 2.7182804......