C / C++ / MFC

E<sub>X</sub>(f) = |X(f)|<sup>2</sup> + |X(-f)|<sup>2</sup>

• linear: points in the x-axis are evenly spaced (with respect to frequency).
  
• logarithmic: points in the x-axis are not evenly spaced (like 10 Hz, 20, Hz, 30, HZ, etc.) but on an exponential fashion: for instance, 10¹ Hz, 10²=100 Hz, 10³=1000 Hz, etc.
  

Total = sqrt(Right<sup>2</sup>+Left<sup>2</sup>).

BOOL CMyWinApp::InitInstance()<br />
{<br />
...<br />
// Parse command line for standard shell commands, DDE, file open<br />
   CCommandLineInfo cmdInfo;<br />
   ParseCommandLine(cmdInfo);<br />
// DON'T display a new MDI child window during startup!!!<br />
   cmdInfo.m_nShellCommand = CCommandLineInfo::FileNothing;<br />
// Dispatch commands specified on the command line<br />
   if (!ProcessShellCommand(cmdInfo))<br />
      return FALSE;<br />
...<br />
};

BOOL CMotionControllerApp::InitInstance()<br />
{<br />
AfxEnableControlContainer();<br />
<br />
// Standard initialization<br />
// If you are not using these features and wish to reduce the size<br />
// of your final executable, you should remove from the following<br />
// the specific initialization routines you do not need.<br />
<br />
#ifdef _AFXDLL<br />
Enable3dControls(); // Call this when using MFC in a shared DLL<br />
#else<br />
Enable3dControlsStatic(); // Call this when linking to MFC statically<br />
#endif<br />
<br />
// Change the registry key under which our settings are stored.<br />
// TODO: You should modify this string to be something appropriate<br />
// such as the name of your company or organization.<br />
SetRegistryKey(_T("Local AppWizard-Generated Applications"));<br />
<br />
LoadStdProfileSettings(); // Load standard INI file options <br />
<br />
// Register the application's document templates. Document templates<br />
// serve as the connection between documents, frame windows and <br />
<br />
CSingleDocTemplate* pDocTemplate;<br />
pDocTemplate = new CSingleDocTemplate(<br />
IDR_MAINFRAME,<br />
RUNTIME_CLASS(CMotionControllerDoc),<br />
RUNTIME_CLASS(CMainFrame), // main SDI frame window<br />
RUNTIME_CLASS(CMotionControllerView));<br />
AddDocTemplate(pDocTemplate);<br />
<br />
// Parse command line for standard shell commands, DDE, file open<br />
CCommandLineInfo cmdInfo;<br />
ParseCommandLine(cmdInfo);<br />
<br />
CSplashWnd::EnableSplashScreen(cmdInfo.m_bShowSplash);<br />
<br />
cmdInfo.m_nShellCommand = CCommandLineInfo::FileNothing;<br />
// Dispatch commands specified on the command line<br />
if (!ProcessShellCommand(cmdInfo))<br />
return FALSE;<br />
<br />
// The one and only window has been initialized, so show and update <br />
// m_pMainWnd->ShowWindow(SW_SHOWMAXIMIZED);<br />
// m_pMainWnd->UpdateWindow();<br />
<br />
return TRUE;<br />
}