Hard math, made easy, when calculating a horizontal ellipsoid
![Orthographic sketch of design ideas used in the new horizontal ellipsoid calculator.](/vault/img/2022/01/11/61ddc3193c0d976970d8eca2/thumb/horizontal-ellipsoid-layout-sketch-2.png)
What are the areas and volume of a horizontal ellipsoid dome? There isn’t an easy answer. Spherical domes have well-defined formulas. Vertical ellipsoids are symmetrical. But tip an elliptical dome on its side and measuring it gets a whole lot harder.