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shown in the following illustration, is bottom-up. Write your own C + + source program, as follows:/**///////////////////////////////////////////////////Rapid Fourier transform fast Fourier Transformby rappizit@yahoo.com.cn2007-07-20Version 2.0Improved the algorithm introduction of algorithm, rotation factor to take ωn-kj (ωnkj conjugate plural)And only N/2 times are calculated, and the need to compute (n * LG N)/2 times is not improved.///**/////////////////////////////////////////////////#i

Windows and VC Programming naming rules the Hungarian naming method is a naming convention for programming. The basic principle is: variable name = property + Type + object description. The name of each object must have a clear meaning. The full name or part of the object name can be used. Naming should be based on the principle of easy to remember and easy to understand. Currently, the Hungarian naming rules are commonly used in Windows program development and MFC program development. The follo

The Hungarian nomenclature is a naming convention when programming. The basic principle is: variable name = attribute + Type + object description. Each object's name requires a clear meaning and can take the full name of the object or part of the name. Naming is based on the principle that easy memory is easy to understand. The naming conventions currently used in Windows Program development and MFC program development are Hungarian nomenclature. Here is the general rule of the HN nomenclature.P

attribute + Type + object description, so that programmers have a visual understanding of the types of variables and other properties when they make variables, the following is the HN variable naming convention. Properties Section :G_ Global Variablesc_ Constantsm_ C + + class member VariablesS_ Static variablesType section:　　Pointers PFUNCTION fnInvalid VHandle h　　Long Integer type L　　Boolean b　　floating Point Type (sometimes referred to as a file) FDual-word DWString szShort-integer nDoubl

bFloating point type (sometimes referred to as a file) FDual-word DWString szShort-integer nDouble precision floating point DCount C (usually CNT)Character ch (usually in C)Integral type I (usually N)BYTE byWord wReal Type Runsigned uDescription section:Max MaxMin minInitialize InitTemp variable T (or temp)Source Object SrcDestination Object DestHere are a few examples to write about:Hwnd:h is a type description, represents a handle, WND is a Variabl