The calculator for hardware engineers who uses a fixed point number in FPGA and so on. * When you input a real number, it's converted to a fixed point number(hexadecimal, binary number). * When you input a fixed point number, it's converted to a real number. * Any fixed point number formats are available. * You can set the rounding mode and overflow mode(Wrap around or Saturation). * The four basic arithmetic operations and logical operations are available. How to use: * Set the fixed point n