home *** CD-ROM | disk | FTP | other *** search
/ IRIX Base Documentation 2001 May / SGI IRIX Base Documentation 2001 May.iso / usr / share / catman / p_man / cat3 / complib / sdfft3dui.z / sdfft3dui
Encoding:
Text File  |  1998-10-30  |  4.6 KB  |  133 lines
  1.  
  2.  
  3.  
  4. ____FFFFFFFFTTTT3333DDDDUUUUIIII((((3333FFFF))))                                                      ____FFFFFFFFTTTT3333DDDDUUUUIIII((((3333FFFF))))
  5.  
  6.  
  7.  
  8. NNNNAAAAMMMMEEEE
  9.      ssssfffffffftttt3333dddduuuuiiii,,,, ddddfffffffftttt3333dddduuuuiiii ---- 3D FFT Real to Complex workspace initialization
  10.      routines.
  11.  
  12. FFFFOOOORRRRTTTTRRRRAAAANNNN SSSSPPPPEEEECCCCIIIIFFFFIIIICCCCAAAATTTTIIIIOOOONNNN
  13.      ssssuuuubbbbrrrroooouuuuttttiiiinnnneeee SSSSFFFFFFFFTTTT3333DDDDUUUUIIII(((( nnnn1111,,,, nnnn2222,,,, nnnn3333,,,, wwwwoooorrrrkkkkssssppppaaaacccceeee ))))
  14.      iiiinnnntttteeeeggggeeeerrrr              nnnn1111,,,, nnnn2222,,,, nnnn3333
  15.      rrrreeeeaaaallll                 wwwwoooorrrrkkkkssssppppaaaacccceeee((((****))))
  16.  
  17.      ssssuuuubbbbrrrroooouuuuttttiiiinnnneeee DDDDFFFFFFFFTTTT3333DDDDUUUUIIII(((( nnnn1111,,,, nnnn2222,,,, nnnn3333,,,, wwwwoooorrrrkkkkssssppppaaaacccceeee ))))
  18.      iiiinnnntttteeeeggggeeeerrrr              nnnn1111,,,, nnnn2222,,,, nnnn3333
  19.      ddddoooouuuubbbblllleeee pppprrrreeeecccciiiissssiiiioooonnnn     wwwwoooorrrrkkkkssssppppaaaacccceeee((((****))))
  20.  
  21.  
  22. CCCC SSSSPPPPEEEECCCCIIIIFFFFIIIICCCCAAAATTTTIIIIOOOONNNN
  23.      ffffllllooooaaaatttt     ****ssssfffffffftttt3333dddduuuuiiii(((( iiiinnnntttt nnnn1111,,,, iiiinnnntttt nnnn2222,,,, iiiinnnntttt nnnn3333,,,,
  24.                           ffffllllooooaaaatttt  ****wwwwoooorrrrkkkkssssppppaaaacccceeee))));;;;
  25.  
  26.      ddddoooouuuubbbblllleeee    ****ddddfffffffftttt3333dddduuuuiiii(((( iiiinnnntttt nnnn1111,,,, iiiinnnntttt nnnn2222,,,, iiiinnnntttt nnnn3333,,,,
  27.                           ddddoooouuuubbbblllleeee ****wwwwoooorrrrkkkkssssppppaaaacccceeee))));;;;
  28.  
  29.  
  30. DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
  31.      SFFT3DUI and DFFT3DUI initialize the array WORKSPACE which is used in
  32.      SFFT3DU and DFFT3DU. The prime factorizations of N1, N2 and N3, together
  33.      with a tabulation of the trigonometric functions are computed and stored
  34.      in WORKSPACE.
  35.  
  36.      NOTE: These routines are provided only for compatibility with previous
  37.      releases of complib.
  38.  
  39. PPPPAAAARRRRAAAAMMMMEEEETTTTEEEERRRRSSSS
  40.      NNNN1111 ---- IIIINNNNTTTTEEEEGGGGEEEERRRR....
  41.      On entry, N1 specifies the number of elements in the first dimension of
  42.      the sequence to be transformed.  Unchanged on exit.
  43.  
  44.      NNNN2222 ---- IIIINNNNTTTTEEEEGGGGEEEERRRR....
  45.      On entry, N2 specifies the number of elements in the second dimension of
  46.      the sequence to be transformed.  Unchanged on exit.
  47.  
  48.      NNNN3333 ---- IIIINNNNTTTTEEEEGGGGEEEERRRR....
  49.      On entry, N3 specifies the number of elements in the third dimension of
  50.      the sequence to be transformed.  Unchanged on exit.
  51.  
  52.      WWWWOOOORRRRKKKKSSSSPPPPAAAACCCCEEEE ---- AAAArrrrrrrraaaayyyy....
  53.      A work array which must be dimensioned at least (N1+15) + 2*(N2+15) +
  54.      2*(N3+15).
  55.  
  56.      On exit, WORKSPACE will contain the prime factorizations of N1, N2 and
  57.      N3, together with a tabulation of the trigonometric functions.
  58.  
  59.  
  60.  
  61.  
  62.  
  63.                                                                         PPPPaaaaggggeeee 1111
  64.  
  65.  
  66.  
  67.  
  68.  
  69.  
  70. ____FFFFFFFFTTTT3333DDDDUUUUIIII((((3333FFFF))))                                                      ____FFFFFFFFTTTT3333DDDDUUUUIIII((((3333FFFF))))
  71.  
  72.  
  73.  
  74. SSSSEEEEEEEE AAAALLLLSSSSOOOO
  75.      o32fft
  76.  
  77.  
  78.  
  79.  
  80.  
  81.  
  82.  
  83.  
  84.  
  85.  
  86.  
  87.  
  88.  
  89.  
  90.  
  91.  
  92.  
  93.  
  94.  
  95.  
  96.  
  97.  
  98.  
  99.  
  100.  
  101.  
  102.  
  103.  
  104.  
  105.  
  106.  
  107.  
  108.  
  109.  
  110.  
  111.  
  112.  
  113.  
  114.  
  115.  
  116.  
  117.  
  118.  
  119.  
  120.  
  121.  
  122.  
  123.  
  124.  
  125.  
  126.  
  127.  
  128.  
  129.                                                                         PPPPaaaaggggeeee 2222
  130.  
  131.  
  132.  
  133.