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Python Math: Split fractional and integer parts of a floating point number

Python Math: Exercise-59 with Solution

Write a Python program to split fractional and integer parts of a floating point number.

Sample Solution:-

Python Code:

import math
print('           (F)  (I)')
for i in range(6):
    print('{}/2 = {} {}'.format(i, i/2, math.modf(i/2.0)))

Sample Output:

           (F)  (I)                                                                                           
0/2 = 0.0 (0.0, 0.0)                                                                                          
1/2 = 0.5 (0.5, 0.0)                                                                                          
2/2 = 1.0 (0.0, 1.0)                                                                                          
3/2 = 1.5 (0.5, 1.0)                                                                                          
4/2 = 2.0 (0.0, 2.0)                                                                                          
5/2 = 2.5 (0.5, 2.0)

Flowchart:

Flowchart: Split fractional and integer parts of a floating point number

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Python: Tips of the Day

Find current directory and file's directory:

To get the full path to the directory a Python file is contained in, write this in that file:

import os 
dir_path = os.path.dirname(os.path.realpath(__file__))

(Note that the incantation above won't work if you've already used os.chdir() to change your current working directory, since the value of the __file__ constant is relative to the current working directory and is not changed by an os.chdir() call.)

To get the current working directory use

import os
cwd = os.getcwd()

Documentation references for the modules, constants and functions used above:

  • The os and os.path modules.
  • The __file__ constant
  • os.path.realpath(path) (returns "the canonical path of the specified filename, eliminating any symbolic links encountered in the path")
  • os.path.dirname(path) (returns "the directory name of pathname path")
  • os.getcwd() (returns "a string representing the current working directory")
  • os.chdir(path) ("change the current working directory to path")

Ref: https://bit.ly/3fy0R6m