Python: Calculate midpoints of a line
Python Basic: Exercise-73 with Solution
Write a Python program to calculate midpoints of a line.
Pictorial Presentation:
![Calculate midpoints of a line](../w3r_images/python-basic-image-exercise-73.png)
Sample Solution:-
Python Code:
print('\nCalculate the midpoint of a line :')
x1 = float(input('The value of x (the first endpoint) '))
y1 = float(input('The value of y (the first endpoint) '))
x2 = float(input('The value of x (the first endpoint) '))
y2 = float(input('The value of y (the first endpoint) '))
x_m_point = (x1 + x2)/2
y_m_point = (y1 + y2)/2
print();
print("The midpoint of line is :")
print( "The midpoint's x value is: ",x_m_point)
print( "The midpoint's y value is: ",y_m_point)
print();
Sample Output:
Calculate the midpoint of a line : The value of x (the first endpoint) 2 The value of y (the first endpoint) 2 The value of x (the first endpoint) 4 The value of y (the first endpoint) 4 The midpoint of line is : The midpoint's x value is: 3.0 The midpoint's y value is: 3.0
Flowchart:
![Flowchart: Calculate midpoints of a line.](../w3r_images/python-basic-exercise-flowchart-73.png)
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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
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