Describe: An analysis and examples of calculation of mathematical expression

File list(time 2002110416~2009121711)(Click to check if it's the file you need, and recomment it at the bottom):
  @PSC_ReadMe_5365_3.txt
  Algebra.cpp
  MathHead.aps
  MathHead.cpp
  MathHead.h
  
  MathHead.ncb
  MathHead.rc
  MathHead.sln
  MathHead.vcproj
  MathNode.cpp
  MathNode.h
  MathSys.cpp
  MathSys.h
  ReadMe.txt
  resource.h
  
  stdafx.cpp
  stdafx.h

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Functions/Classes:
LoadIcon LoadCursor RegisterClassEx CreateWindowEx ShowWindow UpdateWindow GetMessage TranslateMessage DispatchMessage EndDialog SendMessage GetDlgItem GetDlgItemText EnableWindow wsprintf MessageBox CreateDialog GetClientRect SetLastError GetWindowRect MoveWindow DialogBox SetDlgItemText DestroyWindow PostQuitMessage DefWindowProc