Zardos, what exactly is your convention?

Zardos is trying to simplify the writing of numbers using scientific notation

"2.98 x 10^8 m/s" would be "2.98[8] m/s"

I don't oppose conventions as long as they're reasonably clear, as is this case. But personally I prefer using "En" for representing "10^n" for two reasons: it's already familiar to a lot of people (especially in engineering an CS, which understand for example 6.58E-16) and it uses one less character than Zardos' convention, although having the problem of possibly not being so visually "clean": compare the readability of "6.58E-16" to "1.05[-16]" and pick which one you prefer (as long as everyone understand what it means).

But then again, I have the awful habit of sometimes writing (too) long answers, so on a textbox with a character limit every character counts...

I liked the old Fortran notation better, 10ⁿ = 10**n

It's pretty cool, but Nyx makes a good point, it looks like the absolute value symbol.