Homonym: ln (Natural)
The natural logarithm, denoted as ln, is a mathematical function that represents the logarithm to the base e, where e is an irrational number approximately equal to 2.71828. The natural logarithm is commonly used in various fields, including mathematics, physics, and finance, to solve equations involving exponential growth or decay.
The function ln(x) is defined for positive real numbers x and has several important properties. For example, ln(1) equals 0, and ln(e) equals 1. The natural logarithm is also the inverse of the exponential function, meaning that if y = ln(x), then x = e^y.