User talk:Zubairchohan

what is the real application of multiplication of signs as -x+=- etc?

I have some concept of these changing of signs.

(-x+=-) or(+x-=-) when one worse and other good person make conversation between them their thoughts are always negative. (-x-=+) some time when two bad person talk with each other firstly there would be good conversation between them. (+x+=+) we know that conversation between positive people is always positive.