Python exp() Function

Python Numbers

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Description

The exp() method returns the exponential of x, e**x.^x。

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Syntax

The following is the syntax for the exp() method:

import math

math.exp( x )

Note:exp() is not directly accessible; you need to import the math module and call this method via the static object.

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Parameters

• x -- A numeric expression.

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Return Value

Returns the exponential of x, e**x.^x。

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Example

The following shows an example of using the exp() method:

#!/usr/bin/python
import math   # 导入 math 模块

print "math.exp(-45.17) : ", math.exp(-45.17)
print "math.exp(100.12) : ", math.exp(100.12)
print "math.exp(100.72) : ", math.exp(100.72)
print "math.exp(119L) : ", math.exp(119L)
print "math.exp(math.pi) : ", math.exp(math.pi)

After running the above example, the output result is:

math.exp(-45.17) :  2.41500621326e-20
math.exp(100.12) :  3.03084361407e+43
math.exp(100.72) :  5.52255713025e+43
math.exp(119L) :  4.7978133273e+51
math.exp(math.pi) :  23.1406926328

Python Numbers

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