Calculator Calculator Syntax error Result copied to clipboard! Settings Help About Variables And Constants Main settings Drag buttons settings Drag button calibration Allows to calibrate drag button behaviour Down Up Restart Copyright (c) 2009-2011\n\nCreated by serso aka se.solovyev\n\n This program is open source:\nall source code can be found on\nhttp://github.com\n\n For more information please\ncontact the author by email\nse.solovyev@gmail.com \nor visit\nhttp://se.solovyev.org\n\n If you want to support the project\nyou can donate money via\nhttp://paypal.com undo redo CE clear paste vars Highlight expressions Precision of result Exit Add Cancel Save Remove Yes No Removal confirmation Do you really want to delete \'%s\' variable? Name Value Description Create variable Edit variable Value is not a number! Variable name clashes with function name! Variable with same name already exists! Name is empty! System variable cannot be changed! Ratio of any circle\'s circumference to its diameter Unique real number such that the value of the derivative (slope of the tangent line) of the function f(x) = e^x at the point x = 0 is equal to 1 Imaginary unit, defined such that i^2 = −1 Not a number Infinity Enter new expression Press to copy Continue Donate You can thank the author of this program by email\n\n se.solovyev@gmail.com\n\n or donate money via\n\nhttp://paypal.com\n