Comment on Calculate

This is utterly great!!

I wish there was some way I could delete all custom variables/functions from the memory, by simply entering a command ('delete all' or something), or if there was a UI button for it.

Maybe some keyboard shortcuts for the (m)emory and (x)clear would be nice also.

This is a pretty rad calculator, and a pretty nice tool for JS development, I reckon (I'm just starting to learn JavaScript).