You don't seem to realize that you have manufactured an
accusation of which I am not guilty, namely, that I was
using equation without telling you. I was not using
equation except when I indicated. But of course I am
guilty of not telling you that I was not using equation.
Was my last description about the circumflex good enough?

After your last reply post, I tried the sigma circumflex
again and it worked. I have another thing that doesn't
work on my Windows7: pressing "new folder" does nothing.
I have to use "md" on the command screen. And when I am
on the internet with Firefox, I keep getting messages
that my computer is slow and needs fixing and let us
fix it for you. I tried one once but they wanted money.
Maybe they cause the problem and then want money to fix it.
Doesn't Microsoft have a similar way of fixing computers,
like when they do upgrades, and maybe I can trust?