Question

log with base \e\ ($\log_e x$) is referred to as...
common logarithm
base logarithm
natural logarithm
exponential function

Explanation:

Logarithms with base \(e\) (where \(e\) is the mathematical constant approximately equal to 2.71828) have a specific standard name in mathematics. Common logarithms use base 10, "base logarithm" is not a standard term, and an exponential function is the inverse of a logarithm, not a type of logarithm.

Answer:

natural logarithm