Dealerships have turned key fob programming into a quiet profit center, folding a few minutes of work into triple‑digit service bills. For many drivers, that fee is avoidable, because a surprising ...

Leading a nonprofit in eye care, the Armenian EyeCare Project, I hear regularly from colleagues about how much they wish to do volunteer work but cannot find the time to take a mission trip. Eye care ...

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Now one has only coefficients times squares appearing in constraints along with linear terms, and one uses the usual device of viewing an equality as two inequalities to obtain the desired quad- ratic ...