Digital Signal Processing Reference
In-Depth Information
problem. The numbers from these two matrices are shown multiplied and added in
the variable result, showing that the multiplication result is what we should expect.
We use the three dots (ellipsis) after result below to continue on the next line; this
makes the lines t.
>> F.*C
% transpose(F) * C
ans =
292
373
454
535
280
358
436
514
268
343
418
493
256
328
400
472
>> result = ...
[31*0+27*4+23*8, 31*1+27*5+23*9, 31*2+27*6+23*10, 31*3+27*7+23*11;
30*0+26*4+22*8, 30*1+26*5+22*9, 30*2+26*6+22*10, 30*3+26*7+22*11;
29*0+25*4+21*8, 29*1+25*5+21*9, 29*2+25*6+21*10, 29*3+25*7+21*11;
28*0+24*4+20*8, 28*1+24*5+20*9, 28*2+24*6+20*10, 28*3+24*7+20*11]
result =
292
373
454
535
280
358
436
514
268
343
418
493
256
328
400
472
>> F*C.
ans =
172
644
1116
148
556
964
124
468
812
>> result = ...
[31*0+30*1+29*2+28*3, 31*4+30*5+29*6+28*7, 31*8+30*9+29*10+28*11;
27*0+26*1+25*2+24*3, 27*4+26*5+25*6+24*7, 27*8+26*9+25*10+24*11;
23*0+22*1+21*2+20*3, 23*4+22*5+21*6+20*7, 23*8+22*9+21*10+20*11]
