Explain log(x) in Python with example.

1.	Explain log(x) in Python with example.
Answer» Description : The method log( ) returns natural logarithm of x, for x > 0. Syntax : Following is the syntax for log() method import math math.log(x) Note: This function is not accessible directly so we need to import math module and then we need to call this function using math static object. Parameters : x — This is a numeric expression. Return Value: This method returns natural logarithm of x, for x > 0. Example: 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) This will produce 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

Answer»

Description : The method log( ) returns natural logarithm of x, for x > 0.

Syntax : Following is the syntax for log() method

import math

math.log(x)

Note: This function is not accessible directly so we need to import math module and then we need to call this function using math static object.

Parameters : x — This is a numeric expression.

Return Value: This method returns natural logarithm of x, for x > 0.

Example: 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)

This will produce 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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