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Mea Culpa! I thought it was mentioned in the Wiki. Here is an article on it.

http://people.csail.mit.edu/bkph/articles/Quadratics.pdf

Here is a contrived example. Notice that a and b are...

Nothing wrong with your code. It's your math. Your quadratic formula is incorrect. And when you look it up on Wiki, you should check out the computational formula used in programming. It helps...