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Mathematics

Natural Logarithm

Quick fact

The natural logarithm of a number is the power to which e (approximately 2.71828) must be raised to yield that number. Despite e being irrational, ln(1) = 0 and ln(e) = 1 are exact.

Why this is interesting

You know that money can grow exponentially, but have you ever wondered how to calculate the exact time needed for your investment to triple? That's where the natural logarithm comes in—it's the mathematical key to unlocking growth rates.