Python math.exp()方法 (Python math.exp() method)

math.exp() method is a library method of math module, it is used to get the number in exponential form, it accepts a number and returns the number in the exponential format (if the number is x, it returns e**x.

math.exp()方法是math模块的库方法，用于获取指数形式的数字，它接受一个数字并以指数格式返回该数字(如果数字为x ，则返回e ** x 。

Note: If anything is passed except the number, the method returns a type error, "TypeError: a float is required".

注意：如果传递了除数字以外的任何内容，则该方法将返回类型错误“ TypeError：需要浮点数”。

Syntax of math.exp() method:

math.exp()方法的语法：

    math.exp(n)

Parameter(s): n – an integer or a float number.

参数： n-整数或浮点数。

Return value: float – it returns a float value that is an exponential form of the number n.

返回值： float –它返回一个浮点数，该浮点数是数字n的指数形式。

Example:

例：

    Input:
a = 111.111
# function call
print(math.exp(a))
Output:
1.7984326512709283e+48

Python代码演示math.exp()方法的示例 (Python code to demonstrate example of math.exp() method)

# Python code demonstrate example of
# math.exp() method
import math
# numbers
a = 0
b = 245
c = -102.34
d = 111.111
e = -123.456
# printing values in exp format
print("exp(a): ", math.exp(a))
print("exp(b): ", math.exp(b))
print("exp(c): ", math.exp(c))
print("exp(d): ", math.exp(d))
print("exp(e): ", math.exp(e))

Output

输出量

exp(a):  1.0
exp(b):  2.5243412626998188e+106
exp(c):  3.583461328080821e-45
exp(d):  1.7984326512709283e+48
exp(e):  2.4195825412645934e-54

翻译自: https://www.includehelp.com/python/math-exp-method-with-example.aspx