If I, by mistake, write
Mathematica assigns $y'(x)=y(x)/5$ and I don't know how to clear that from memory (I had to restart Mathematica).
Clear[y,y',x]
did not help, but instead gave an error. What is the correct procedure to clear it from memory? TIA.
Remove["`*"]. – Mariusz Iwaniuk Jan 24 '20 at 16:33