Calculator Calculator Syntax error Result copied to clipboard! Settings Help About Main settings Drag buttons settings Drag button calibration Allows to calibrate drag button behaviour Down Up Restart Copyright (c) 2009-2011.\nCreated by serso aka se.solovyev.\n For more information please\ncontact me via email\nse.solovyev@gmail.com \nor visit\nhttp://se.solovyev.org undo redo clear paste