This is strictly hypothetical; has nothing to do with any specific project or shop work at all. I am looking at the bend allowance formula, and wonder if anyone has a good reference to it. copy and pasted: Bend Allowance = 2(pie) (R + 1/2T) ÷ 4 in the format I am viewing it, the 1/2T could be read as "one over two-T" but I doubt that is intended. So, (2xπ) x(R+(1/2xT))...the product of which is divided by 4. R=desired bend radius T=material thickness So I want to verify the formula is correct, that I am reading it right.