算得准-专业计算器，万能计算器

Professional Engineering Calculator, a powerful mobile computing tool for engineers!
- Ad-free interference: Specifically designed for engineers, it offers a pure user experience and rejects pop-up ads.
- Full coverage of core functions:
- Basic scientific calculations: Trigonometric functions, logarithmic and exponential operations, power operations, constant calls (such as π/e), support angle/radian switching, meeting general calculation needs.
- 12 types of unit conversions: Length, weight, area, volume, temperature, speed, etc., covering common sub-units such as meters/centimeters/inches, kilograms/pounds, etc., with a quick one-key conversion.
- Number system conversions: Support conversions between binary, octal, decimal, and hexadecimal, adapting to electronics/computer engineering scenarios.
- Engineering-specific calculations: Built-in modules for mechanics, circuits, materials, etc., solving professional problems such as inclined plane forces, series resistors, etc.
- User-friendly design:
- Landscape operation: Adapts to iPhones, making it more convenient to use in portrait mode for engineering scenarios.
- Local saving of calculation history: Automatically records the last 20 calculations, which are not lost after uninstallation and can be traced back at any time.
- Precise adaptation: Optimized for engineers' on-site operations, with large numbers clearly displayed and real-time input verification to avoid errors.
- Efficient operation, saving time and effort: From basic formulas to complex engineering problems, everything is available, helping you focus on your core work!