2019-01-06 17:38:43 +0200 | asked a question | a.N(3) DID WORK past now only N(a,3) ??? so, I updated from 6.1 to 8.5 due 6.1 did not complied! Old sheets dose not work due I used notation a.N(3) and it's equalent N(a,3) works still ??? Where is the cat ? |