计算工具箱 vs CalcKing Pro

是一款多功能的计算器软件，可以实现标准计算，公约数计算；还可以实现亲戚关系计算，黄历计算和运势计算；更大的特点是可以在计算器上记录自己的各类事情方便查看日期和时间，还可以查看节气日期和节气注意事项，更好的宣传中国传统文化。

Professional engineering calculator, the mobile computing tool for engineers! No ad interference: Specifically designed for engineers, with a pure usage experience and no pop-up ads. Full coverage of core functions: Basic scientific calculations: Trigonometric functions, logarithms and exponents, power operations, constant calls (π/e, etc.), support for degree/radian conversion, meeting general calculation needs. 12 types of unit conversions: Length, weight, area, volume, temperature, speed, etc., covering meters/cm/inches, kilograms/pounds, etc. Common sub-units, one-click quick conversion. Base conversion: Supports binary, octal, decimal, and hexadecimal conversions, suitable for electronic/computer engineering scenarios. Specialized engineering calculations: Built-in mechanics, circuits, materials, etc. Modules, solving professional problems such as force on inclined planes, series resistors, etc. User-friendly design: Portrait operation: Compatible with iPhone, using the vertical screen in engineering scenarios is more convenient. Local saved calculation history: Automatically records the last 20 calculations, not lost when uninstalling, and can be recalled at any time. Precise adaptation: Optimized for on-site work by engineers, clear display of large numbers, real-time input verification to avoid errors. Efficient work, time and effort-saving: From basic formulas to complex engineering problems, all are covered, helping you focus on core work!