The log() method in Python number returns the natural logarithm of x, where x > 0. This log function is another Python Math function that is used for the calculation of the logarithmic value of a certain number comprising of the base e. Python in its math module offers many inbuilt logarithmic functions that allow us to calculate logs making use of a single line.
Following is the syntax for log() method:
import math math.log( x )
Note - This function is not accessible directly, so we need to import the math module, and then we need to call this function using a math static object.
This method returns natural logarithm of x, for x > 0.
The following example shows the usage of log() method.
#!/usr/bin/python import math # This will import math module print "math.log(100.12) : ", math.log(100.12) print "math.log(100.72) : ", math.log(100.72) print "math.log(119L) : ", math.log(119L) print "math.log(math.pi) : ", math.log(math.pi)
When we run the above program, it produces the following result:
math.log(100.12) : 4.60636946656 math.log(100.72) : 4.61234438974 math.log(119L) : 4.77912349311 math.log(math.pi) : 1.14472988585
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