Please note, this is a STATIC archive of website www.w3resource.com from 19 Jul 2022, cach3.com does not collect or store any user information, there is no "phishing" involved.
w3resource

Python Math: Calculate the discriminant value

Python Math: Exercise-9 with Solution

Write a Python program to calculate the discriminant value.
Note: The discriminant is the name given to the expression that appears under the square root (radical) sign in the quadratic formula.

Sample Solution:-

Python Code:

def discriminant():
    x_value = float(input('The x value: '))
    y_value = float(input('The y value: '))
    z_value = float(input('The z value: '))
    discriminant = (y_value**2) - (4*x_value*z_value)
    if discriminant > 0:
        print('Two Solutions. Discriminant value is:', discriminant)
    elif discriminant == 0:
        print('One Solution. Discriminant value is:', discriminant)
    elif discriminant < 0:
        print('No Real Solutions. Discriminant value is:', discriminant)


discriminant()

Sample Output:

The x value: 4                                                                                                
The y value: 8                                                                                                
The z value: 2                                                                                                
Two Solutions. Discriminant value is: 32.0

Flowchart:

Flowchart: Calculate discriminant value

Visualize Python code execution:

The following tool visualize what the computer is doing step-by-step as it executes the said program:

Python Code Editor:

Have another way to solve this solution? Contribute your code (and comments) through Disqus.

Previous: Write a Python program to calculate the area of a sector.
Next: Write a Python program to find the smallest multiple of the first n

What is the difficulty level of this exercise?

numbers. Also, display the factors.

Test your Programming skills with w3resource's quiz.



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