minus sign with resuse result option

[Former user]

Hello. Is it possible to avoid the use of ans only with the minus sign, or better, exclude it by pressing something like ALT+- when you want only minus? Sometime calculation starts by a negative number and it's annoying deleting ans all the times. Thank you

[Helder Correia]

Maybe we should change the automatic insertion of ANS when we detect 2 straight operators on a previously empty edit.