The exponential function applied to the value e is written as exp(x). It can also be written as ex, where e is a mathematical constant and the base of natural logarithm, which is about equal to 2.7 1828 1828, also known as Euler number.
When a> is in 1, the negative value of exponential function to x is very flat, and the positive value to x rises rapidly. When x equals 0, y equals 1. When 0
Exponential function properties:
1, the domain of exponential function is r, where the premise is that a is greater than 0 and not equal to 1. For the case that a is not greater than 0, it will inevitably make the definition domain of the function discontinuous, so it will not be considered, while the function with a equal to 0 is meaningless and generally will not be considered.
2. The range of exponential function is (0, +∞).
3. The exponential function graph is concave.
4. Functions always infinitely tend to a certain direction on the X axis and never intersect.
5. The function always passes (0, 1), (if so, the function has passed the point (0, 1+b)).