aView

aView is a collection of small utilities to calculate various things about angles, speed, altitudes, horizon, areas, ranges, orbits and time. Functions: Triangle area using Heron´s formula, three knows sides. Triangle area using trigonometric sine function, two known sides and angle berween. Distance to horizon or to tower behind horizon. Altitude needed to see a certain distance to the horizon. Depth of a straight tunnel below the earth surface. Projectile parabola. Altitude, distance and time. Turning radius and g-force for given speed and banking. Speed and time in orbit around the earth. Gravitation from a body at certain distances. Calculate your glasses dioptre. Convert angles format. Triangle angles and length. Calculate roots in quadratic equation.