What is ln0?

The natural logarithm of 0, written as ln(0), is undefined because there is no positive number that when raised to the power of 'e' (the base of natural logarithm, approximately equal to 2.71828) results in 0. In mathematical terms, ln(0) is approached to negative infinity as the input gets closer to 0 from the positive side.

Therefore, it is mathematically incorrect to evaluate the natural logarithm of 0. The function ln(x) is defined for positive real numbers only, excluding 0 and negative numbers.