A small cross platform calculation software for engineer calculation.

Linux screenshot

• Multiple CRC calculations, with predefined patterns
  • CRC4
  • CRC5
  • CRC6
  • CRC7
  • CRC8
  • CRC16
  • CRC32
• Multiple base number conversion
• Multiple types of numbers to byte buffer conversion
• Big Float calculation
• Big Integer calculation
• Convertor
• Programmable calculator
• Multiple interpreters
  • Pascal Script
  • micropython (windows/linux)
  • Lua
  • Tiny C
• Constants display
• more

• CRC algorithm from
  https://www.iteye.com/blog/kiolp-2262455

• Base convert function from
  https://blog.csdn.net/tianqin20140902/article/details/44151717

• Big Float and Big Integer (DFFLib) from
  http:https://www.delphiforfun.org.ws034.alentus.com/Programs/Library/bigfloat.htm

• PascalScript (Integrate with Lazarus IDE)
  https://wiki.lazarus.freepascal.org/index.php/Pascal_Script

• SynEdit (Integrate with Lazarus IDE)
  https://wiki.freepascal.org/SynEdit

• RichMemo
  https://wiki.freepascal.org/RichMemo

• Install Lazarus 2.0+ and FPC 3.0.4+
• Install RichMemo package
• Run Lazarus IDE, then open project CalcToolBox.lpr
• Build the project.

Default build binary file size is very large (> 30M), to reduce file size, please open project option dialog.

• in Debugging tab, remove option
  • Generate info for the debugger
  • Display line numbers in run-time error backtraces
• in Compilation and Linking, select
  • Smart linkable
  • Link smart

Then rebuild.

• CRC

• Base convert

• Big Float calculate

• Big Int calculate

• Big Int calculate

• Programmable calculator

• Pascal interpreter

• micropython interpreter

• Lua interpreter

• TinyC interpreter

• Options