Calculate logarithm in python

Question

I am wondering why the result of log base 10  1 5  in python   0 405465108108 while the real answer   0 176091259   This is the code that I wrote   import math print math log 1 5    Can someone tell how to solve this issue

User · Answer

If you use log without base it uses e   From the comment     Return the logarithm of x to the given base    If the base not specified  returns the natural logarithm  base e  of x    Therefor you have to use   import math print  math log 1 5  10

User · Answer

From the documentation   With one argument  return the natural logarithm of x  to base e   With two arguments  return the logarithm of x to the given base  calculated as log x  log base    But the log10 is made available as math log10    which does not resort to log division if possible

User · Answer

The math log function is to the base e  i e  natural logarithm  If you want to the base 10 use math log10

User · Answer

math log10 1 5    Use the log10 function in the math module

[python] Calculate logarithm in python

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