Calc 3D
Calc3D is a calculator for vectors, matrices, complex numbers, quaternions and coordinates. For objects like point, line, plane and sphere distances, intersections, volume, area of squeres, area of a triangle can be calculated. (5 languages)
SunCalculator
Draw Cartesian (standard or parametric) and Polar functions, special functions or Integral (with Average preview), analyze functions, calculate and draw integral, derivative, average, evaluate any function. Use complex and geometry calculator.
UnitStar
Award-winning unit conversion program. Hundreds of units are included, along with detailed descriptions giving the history and definitions of units. Features include conversion tables, adjustable number of decimal places, and conversion formulas.
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