ASP.NET AJAX application for calculate values in alternate current. Not use Database, is stand alone application. It's written for create multiple calculations in alternate current.
Check for Demo http://aspsource.org/eleweben
A scientific calculator written in Python, this project uses the wxPython and mpmath modules to create a scientific calculator suitable for use on a computer desktop. It is largely a rewrite and update of jscicalc. It has much higher precision.