Hey I found this site, and wanted to share it with you guys. You can solve arithmetic, trig, and stat formulas using the site. The url is http://www.kanakku.com/. Also there is a video on how to use the site at http://www.kanakku.com/pages/help/video.html [Broken]. Also, I found out that all the trig functions are in radians and not degrees. Let me know what you guys think.