Describe: The design use STC89C516RD+ MCU to control the computing device, On 8*6 keyboard control, with 12864ZB matrix liquid crystal display (LCD),9v battery power. For this calculator I used a matrix of 38 keys keyboard, 10 numeric keys, a decimal point key, a plus or minus keys, four common operation keys, an equal sign key, a Clear key, a The second function keys, four trigonometric functions keys, four commonly used formula keys, there are eight other function keys. This calculator and the calculator was no significant difference in common, including arithmetic, factorials, percentages, squares, cubes, mix, involution, the countdown can be accurate to 10, other operations because the call to C language function library for floating-point type, the effective bit only seven. Keywords: Single-chip dot-matrix graphic LCD matrix keyboard C language library function.

File list(Click to check if it's the file you need, and recomment it at the bottom):
  计算器实现\87
  ..........\87.bak
  ..........\87.c
  ..........\87.hex
  ..........\87.lnp
  ..........\87.LST
  ..........\87.M51
  ..........\87.OBJ
  ..........\87.opt.bak
  ..........\87.plg
  ..........\87.Uv2.bak
  ..........\87.uvopt
  ..........\87.uvproj
  ..........\87_Opt.Bak
  ..........\87_Uv2.Bak
  ..........\87_uvopt.bak
  ..........\STARTUP.A51
  ..........\STARTUP.LST
  ..........\STARTUP.OBJ
  计算器实现

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