Potential functions are mathematical functions (f (x)) of the form "a exp x". In potential functions, the variable (x) usually forms the base and a fixed number forms the exponent
. Example: x exp 3. It is different with the natural exponential function. Here the base is formed by the number "e" and the exponent by a variable. The number "e" is called Euler's number, it has the value 2.71828182845904 and is named after the Swiss mathematician Leonhard Euler. "e" is the base of the natural logarithm. The numerical range of the e-function is from 1, and when the exponent is 0, to infinity. The range of values of the e-function is always positive; it cannot become 0 or negative.
Theslope of the e-function occurs faster than that of all other potential functions such as x exp 6.
The e-function occurs in natural growth, and in electronics it occurs where charges and discharges occur. For example, in the charging of capacitors and inductors, in RC elements, differentiators, integrators, in analog computers for integral and differential calculations, etc.