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Posted 19 Dec 2016
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Engineering Calculator VOLTA-12

, 4 Oct 2012
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Productivity software implemented as pure HTML5/CSS3/Javascript solution, encapsulated in a single text file does not require any image files. Can run in all major browsers, and also is intended to add ability of standalone operations under Windows OS on Ultrabooks.
This is an old version of the currently published article.

Editorial Note

This article is an entry in our AppInnovation Contest. Articles in this sub-section are not required to be full articles so care should be taken when voting.


Engineering Calculator VOLTA-2012 is implemented as HTML 5 web application project that adheres to software paradigm of separation of programming concerns, namely:

  • Content: HTML5
  • Presentation: CSS3
  • Functionality: Javascript/jQuery

Entire project is encapsulated in a single text file with extremely small digital footprint (less than 10kB). It does not require any graphic files, like .jpg or .png, etc. All aesthetic enhancements, like: rounded corners, color gradients, borders and shadows are achieved exclusively via CSS3 styling, thus resulting in small application footprint and very fast web page load.


Engineering Calculator VOLTA-2012 extends the capability and application scope of its predecessor, previously published online [1,2] and partially described on Codeproject (see the link: Engineering Calculator VOLTA-2012)


Working Demo of Engineering Calculator VOLTA-2011 is available online: click on the snapshot image shown below and you will be redirected to the demo page implemented fully-functional calculator:

Engineering Calculator VOLTA-2011

Using the code

The code base of existing Calculator VOLTA-2011 has been well documented, commented and discussed online [2]. User Manual is also available online at:[1]

The next version of Calculator VOLTA-2012 (currently under development) will extend the application package and add the capability of running in standalone mode on any Windows-equipped computer, in particular, Ultrabooks.


Engineering Calculator VOLTA-2012 (HTML5 web application) has been released in the year 2011 [1,2]

Calculator VOLTA-2011 has been tested on new Apple iPad version (iPad 3) Read the entire article on Examiner: New iPad 3 is here: quick notes from Apple store on Fifth (Mar 17, 2012)


  1. Online Engineering Calculator Volta-2011, User Manual[^]
  2. Online Engineering Calculator Volta-2011, Design Notes[^]


This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


About the Author

Founder Infosoft International Inc
United States United States
Dr. Alexander Bell is a seasoned full-stack Software Engineer (Win/Web/Mobile). He holds PhD in EE/IT, authored 37 inventions and published 300+ technical articles. Currently focused on Java/Javascript, .NET/C#, Android/Mobile, SQL, 'Big Data', Machine Learning, AI, IoT. Alex participated in App Innovation Contests (AIC 2102/2013) with multiple winning submissions. Portfolio samples:

  1. Real-time NY Bus Tracking Web App (IoT)
  2. Android Fraction Calculator "Fractal MK-12"
  3. Android Prime Factorization Calculator 18-digit)
  4. Semaphon™ semantic phone num-to-text converter
  5. Educational Web Portal
  6. Free Online NY Payroll Tax Calculator
  7. WebTV powered by YouTube Player powered by .NET API (#1 on Google)
  8. Engineering Calculator VOLTA
  9. Big Data: Facebook and YouTube
  10. NY City Trivia Quiz
  11. Publications by A. Bell

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QuestionWhy? Pin
Sergey Alexandrovich Kryukov18-Feb-15 7:18
mvpSergey Alexandrovich Kryukov18-Feb-15 7:18 
GeneralMy vote of 5 Pin
majid torfi27-Oct-14 19:31
membermajid torfi27-Oct-14 19:31 
GeneralRe: My vote of 5 Pin
DrABELL28-Oct-14 2:50
professionalDrABELL28-Oct-14 2:50 
GeneralMy vote of 5 Pin
Agent__00716-Oct-14 22:28
professionalAgent__00716-Oct-14 22:28 
GeneralRe: My vote of 5 Pin
DrABELL17-Oct-14 3:04
professionalDrABELL17-Oct-14 3:04 
GeneralMy vote of 3 Pin
fredatcodeproject10-Oct-13 0:52
memberfredatcodeproject10-Oct-13 0:52 
GeneralRe: My vote of 3 Pin
DrABELL10-Oct-13 2:09
professionalDrABELL10-Oct-13 2:09 
GeneralRe: My vote of 3 Pin
fredatcodeproject10-Oct-13 23:45
memberfredatcodeproject10-Oct-13 23:45 
QuestionProject and source code. Pin
Member 1029605226-Sep-13 21:56
memberMember 1029605226-Sep-13 21:56 
GeneralMy vote of 5 Pin
Azim Zahir9-Aug-13 22:29
memberAzim Zahir9-Aug-13 22:29 
GeneralRe: My vote of 5 Pin
DrABELL10-Aug-13 1:44
professionalDrABELL10-Aug-13 1:44 
GeneralMy vote of 5 Pin
Art Tres8-Jul-13 7:56
memberArt Tres8-Jul-13 7:56 
GeneralRe: My vote of 5 Pin
DrABELL29-Oct-14 4:04
professionalDrABELL29-Oct-14 4:04 
GeneralMy vote of 5 Pin
Phat (Phillip) H. VU26-Dec-12 22:48
memberPhat (Phillip) H. VU26-Dec-12 22:48 
GeneralRe: My vote of 5 Pin
DrABELL27-Dec-12 3:05
memberDrABELL27-Dec-12 3:05 
GeneralMy vote of 5 Pin
Abhishek Nandy10-Dec-12 21:25
memberAbhishek Nandy10-Dec-12 21:25 
GeneralRe: My vote of 5 Pin
DrABELL11-Dec-12 3:46
memberDrABELL11-Dec-12 3:46 
GeneralRe: My vote of 5 Pin
Abhishek Nandy11-Dec-12 18:46
memberAbhishek Nandy11-Dec-12 18:46 
GeneralMy vote of 5 Pin
Akram El Assas9-Oct-12 21:33
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GeneralRe: My vote of 5 Pin
DrABELL10-Oct-12 2:05
memberDrABELL10-Oct-12 2:05 
GeneralMy vote of 5 Pin
Roshan D9-Oct-12 15:52
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GeneralRe: My vote of 5 Pin
DrABELL9-Oct-12 17:46
memberDrABELL9-Oct-12 17:46 
GeneralMy vote of 5 Pin
Sergio Andrés Gutiérrez Rojas8-Oct-12 20:28
memberSergio Andrés Gutiérrez Rojas8-Oct-12 20:28 
GeneralRe: My vote of 5 Pin
DrABELL9-Oct-12 4:16
memberDrABELL9-Oct-12 4:16 
GeneralMy vote of 5 Pin
Mohammad A Rahman8-Oct-12 20:01
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