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An Intelligent All-Purpose Calculator using WinRT and Windows Phone


Vishnu Nath is a software engineer at Microsoft with a passion for development. Nath spent his time as an electrical engineering student studying voltages and currents, memory leaks, race conditions, and protons and electrons, which created a love for technology and learning. He has since performed research in the fields of artificial intelligence, machine learning, and computer vision. His enthusiasm for knowledge led him to build an application that would provide others with the opportunity to learn as well.

The Challenge

Nath wanted to build a calculator that would include input validation, display results quickly in specific text boxes and tables, and perform many tasks based on various calculations, all of which would be challenging for Nath to implement. He also wanted to save development time, and create a UI that would give his users a smooth experience with no learning curve.


He created IntelliCal, an all-purpose calculator application that supports various types of calculators and can be used by students and professionals alike. Nath used Essential Studio for Windows Phone and Essential Studio for WinRT to develop his application.Many of the controls helped enhance the app’s functionality, including numeric text boxes, domain text boxes, grids, and buttons.These controls helped Nath create a seamless user interface and gave his end users an easy way to navigate through the application.He also used the CalcEngine control to ensure accuracy of calculations, and included features like PEMDAS support.


Nath has noticed that his users are able to get exactly what they need out of his intuitive application.Syncfusion controls have reduced his application’s load time,and with the help of Syncfusion’s support team,Nath was able to add all the functionalities he was looking for, resulting in happier end users. According to Nath, “The support team was fabulous, in fact, they are the very best I have ever had the pleasure of coming across.”

IntelliCal includes a variety of features ranging from a tip calculator to a currency converter, and even features integration with Wolfram|Alpha. Whether a user needs to know the capital of Sri Lanka or convert Newtons per meter to pounds per inch, IntelliCal has the answer. IntelliCal can be downloaded for free from the Windows Store.


  • Hassle-free development
  • Quick load time for controls
  • Fabulous support
  • Seamless integration of controls


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