 The general aim is to make elements self explanatory. To remain terse though, not all meanings are readily visible. If you forget the meaning of a symbol, you can just hover or click on elements to get explainers on what each element does.  The general aim is to make elements self explanatory. To remain terse though, not all meanings are readily visible. If you forget the meaning of a symbol, you can just hover or click on elements to get explainers on what each element does. 