Apps in this category may contain mild or occasional cartoon, fantasy or real-life violence, as well as occasional or mild adult, sexually suggestive or horrifying content and may not be suitable for children under 9 years of age.

12+

Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.

17+

You must be at least 17 years old to access this App.

Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.

Circle and Sphere Pro 螢幕截圖

iPad

iPhone

About Circle and Sphere Pro

This app calculates all quantities of a sphere (body of a sphere, circle, all parts of sector and segment). Therefore you must enter some variables (like the radius of a circle and the central angle). The algorithm searches the formulas of the missing quantities, shows them and calculates the results.

Decimals and fractions are supported. The solution is shown step by step. All calculations are stored in the history. The final solution can be shared.

[ Content ]
- all important quantities for the circle and sphere calculation
- formulas for all important quantities of a sphere, circle, sector and the segment
- infographic to illustrate the topic
- search bar to find the desired quantity
- history function to save input
- detailed solution
- positive numbers, decimals and fractions are supported
- no ads!

[ Usage ]
- there are several fields for entering the values using a special keyboard
- if values are missing, all fields are highlighted in orange
- if values are oppositions (like "r = 1 and d = 3"), one affected field is highlighted in red
- every value must be positive
- maximum of alpha is 360°
- beta must be less than 90°
- if a value is no number, it is highlighted in red
- the entries in the history can be deleted or sorted manually
- if you select an entry in the history, it will be loaded automatically for the calculation
- the entire history can be deleted by pressing a button
- solutions can be shared