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.\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 clr 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