Featured Post

14 Top Data Pipeline Key Terms Explained

-
Image
 Here are some key terms commonly used in data pipelines 1. Data Sources Definition: Points where data originates (e.g., databases, APIs, files, IoT devices). Examples: Relational databases (PostgreSQL, MySQL), APIs, cloud storage (S3), streaming data (Kafka), and on-premise systems. 2. Data Ingestion Definition: The process of importing or collecting raw data from various sources into a system for processing or storage. Methods: Batch ingestion, real-time/streaming ingestion. 3. Data Transformation Definition: Modifying, cleaning, or enriching data to make it usable for analysis or storage. Examples: Data cleaning (removing duplicates, fixing missing values). Data enrichment (joining with other data sources). ETL (Extract, Transform, Load). ELT (Extract, Load, Transform). 4. Data Storage Definition: Locations where data is stored after ingestion and transformation. Types: Data Lakes: Store raw, unstructured, or semi-structured data (e.g., S3, Azure Data Lake). Data Warehous...
Post a Comment

Calculate Circle Area the Logic You Need to write in Python

-
In Python, you can calculate the circle area easily by using the function. The purpose of Python is to use in data analysis.

Calculate circle area in Python using function. The logic you need given for your projects.


You need this logic in many areas. You can use in your present finance projects or new ones. Benefits of function you can re-use the same code number of times.

       
         Area of Circle=pi*r*r


Area of Circle Steps Given - You Can do Using Two Methods, Explained Both Methods

I have given steps to calculate the area of a circle using two different methods. First I followed by creating a user-defined function. Next, directly I ran the formula in the interpreter.
 


Method -1

Steps I have followed to Calculate Area Using Function

  1. Logged into Cent Os (Linux)
  2. Create .py module
  3. Import .py module into Python
  4. Execute .py module

 1. Log in

I have first logged into CentOS. You can see there '$'.

login centos

2. Creating .py module

  • To create ".py" module. You can use the vi editor command.
  • You need 'import decimal' to get Decimal values. Else you will get the only integer.

py module

I have given the PWD command. Which tells the present working directory. There you can give ls command. You can see the list of .py modules. Here, you can see two kinds of modules. Those are .py and .pyc.

The .py is our module, which contains a function to calculate the Circle area. The .pyc module is a Python compiled module that will store in the same directory. When you first import the module in Python, the " .Pyc" module will create by Python.

list of modules

3. Importing the Module from Operating system


  • You need to first go to Python using Python command. There, you can give an import module-name.
  • During import .py for the module extension not required.

import module

 4. Execute Function with Circle area

You can pass a value to function to get the area of a circle.

result circle area

The value is rounded to 2 digits. I used round() function.

Bottom Line

Steps I used explained to calculate the area using the function. In a similar way you can calculate areas for:

  1. Rectangle area
  2. Circle perimeter

Method -2

How to calculate Circle area using the command line

You can give values directly in the Circle area formula to get area.

command line circle area

       
>>> import decimal
>>> from decimal import Decimal
>>>> Decimal(22)/Decimal(7)*10*10
 Related

Comments

Post a Comment

Thanks for your message. We will get back you.

Popular posts from this blog

How to Fix datetime Import Error in Python Quickly

-
Image
Here's a quick resolution for import datetime Python error . The reason is your .py python script name and datetime  are the same. I'll show you how this error happens and its resolution.   Here's the Resolution for ImportError I've created a script called 'datetime.py.' to check whether the minute value is 'odd' or not. During the import of my python script, I got the import error cannot import name datetime. My Script: datetime.py My script's intention is to find whether the minute value is odd or not. Python Logic from datetime import datetime odds = [ 1 , 3 , 5 , 7 , 9 , 11 , 13 , 15 , 17 , 19 , 21 , 23 , 25 , 27 , 29 , 31 , 33 , 35 , 37 , 39 , 41 , 43 , 45 , 47 , 49 , 51 , 53 , 55 , 57 , 59 ] right_this_minute = datetime.today().minute if right_this_minute in odds: print ( "This minute seems a little odd." ) else : print ( "Not an odd minute." ) ImportError I have imported my datetime.py from Linux. It gives an error ...
Read more

SQL Query: 3 Methods for Calculating Cumulative SUM

-
Image
SQL provides various constructs for calculating cumulative sums, offering flexibility and efficiency in data analysis. In this article, we explore three distinct SQL queries that facilitate the computation of cumulative sums. Each query leverages different SQL constructs to achieve the desired outcome, catering to diverse analytical needs and preferences. Using Window Functions (e.g., PostgreSQL, SQL Server, Oracle) SELECT id, value, SUM(value) OVER (ORDER BY id) AS cumulative_sum  FROM your_table; This query uses the SUM() window function with the OVER clause to calculate the cumulative sum of the value column ordered by the id column. Using Subqueries (e.g., MySQL, SQLite): SELECT t1.id, t1.value, SUM(t2.value) AS cumulative_sum FROM your_table t1 JOIN your_table t2 ON t1.id >= t2.id GROUP BY t1.id, t1.value ORDER BY t1.id; This query uses a self-join to calculate the cumulative sum. It joins the table with itself, matching rows where the id in the first table is greater than...
Read more

Big Data: Top Cloud Computing Interview Questions (1 of 4)

-
Image
The below are frequently asked interview questions on Cloud computing: 1) What is the difference between Cloud and Grid? Grid: -Information service -Security Service -Data management -Execution Manageement Cloud: - Maintains up-to-date information of resources -Create VMs according to user requirement -Application deploment -User management 2) What are the different cloud standards? -Interoperability standards -Security standards -Portability Standards -Governance and Risk standards 3) What are the two different sub-systems in Cloud computing ? -Management sub system -Resource sub system 4)What is Cloud compouting? The promise of cloud computing is ubiquitous access to a broad set of applications and services, which are delivered over the network to multiple customer. 5) Why we need specialized network for Cloud services? The public Internet is the simplest choice for delivering cloud-based services. In this model, the cloud provider simply purchases Inter...
Read more