Natural logarithm calculation

1. A natural logarithm is a logarithm with the constant e as its base. The general form of a natural logarithm is lnN (N > 0).

2. Natural logarithms are of great significance in the natural sciences. They are generally denoted as lnx, and in mathematics, they are also commonly represented as logx.

3. The constant e represents the limit value reached when a quantity doubles continuously over a unit of time.

4. e is a non-repeating decimal with an approximate value of 2.718281828459…, and it is a transcendental number.