Hi, in a Notebook, I defined some constants by numerical values. But I cannot erase that definition. Neither by opening a new Notebook, nor by using the command "Clear". Does someone know how to do that?
Perhaps you are troubled that the symbol a remains even after you use Clear on it:
a
Clear
Names["Global`*"] {} a = 1; Clear[a] Names["Global`*"] {a}
In that case, you could use Remove instead of Clear:
Remove
Remove[a] Names["Global`*"] {}
Thank you very much, the "Remove" Command works very well. Have a nice day.
What did you do exactly with Clear? This way works for me:
a = 1; Clear[a]
Another way:
a = 1; a =.
A more drastic Clear, that wipes out all symbols in the Global context:
Global
Clear["Global`*"]