Mathematical parser

There is a NEWER VERSION of this application. The name is "Mathematical parser ver2", search it on this site or on my home page. Evaluates expressions with common symbols and mathematical functions. You can use trigonometric functions as well as the common operators like +, -, *, /... For examples on the syntax you can look at the picture. It looks terrible, I know... Within some time there will be another version, with other features as well as with other functions. Please, report me bugs (I think there are many mistakes), critics, comments...hi all.