Three percentage tools in one: X% of Y, X is what percent of Y, and percent change from one value to another.
Solve ax² + bx + c = 0 — the discriminant, both roots (real or complex) and the vertex of the parabola.
Convert length (in, ft, yd, mi, mm, cm, m, km), weight (oz, lb, g, kg) and temperature (°F, °C, K) in one place.
From two legs, or the hypotenuse and one leg: the third side, both angles in degrees, area and perimeter.
Enter a list of numbers — count, sum, mean, min, max, range, sample variance and standard deviation.
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