![]() This can be a useful calculation, because the sign on the discriminant will tell you if the roots of the equation are real or complex. Then I would have a cell that calculates the "discriminant" (b^2-4ac). For example, in this case, I would probably have separate cell for A, B, and C (=c-y). ![]() I often find it easier to build them if I use multiple cells for the calculation. I don't have any magic solutions for building formulas like this that require a lot of brackets. You will also see that it is not dividing by 2a at all, but dividing by 2 then multiplying by a. If you follow the calculation (maybe using the formula evaluation tool ), you will see that it is not dividing the initial 0.514 by 2a. ![]() Have I got the brackets in the wrong place ![]()
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