I am not going to try and even surprise you with this. Notice the "tools:". This post is not about physics really, but something used in physics. When I get enough of these, I will put them together ...

Q. I have an Excel spreadsheet that contains errors because some of the numbers that are part of the calculations are blank or zero. Is there a way to have Excel automatically return something instead ...

Let $If$ be the integral of $f(\overset {\rightarrow}{(x)}$ over an $N$-dimensional hypercube and $Q6{(m)}f$ be the approximation to $If$ obtained by subdividing the ...