1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
|
function [stk,txt,top]=sci_fft()
// Copyright INRIA
txt=[]
if rhs==1 then
[m,n]=checkdims(stk(top))
x=stk(top)(1)
if m==-1&n==-1 then
set_infos(['mtlb_fft('+x+') may be replaced by '
' fft('+x+',-1)'+' if '+x+'is a vector'],1)
stk=list('mtlb_fft('+x+')','0',stk(top)(3),stk(top)(4),'1')
elseif m==1|n==1 then
stk=list('fft('+x+',-1)','0',stk(top)(3),stk(top)(4),'1')
else
stk=list('mtlb_fft('+x+')','0',stk(top)(3),stk(top)(4),'1')
end
elseif rhs==2 then
stk=list('mtlb_fft('+stk(top-1)(1)+','+stk(top)(1)+')','0','?','?','1')
elseif rhs==3 then
job=stk(top)(1)
if stk(top-1)(1)=='[]' then
if job=='1' then
y=lhsvarsnames()
if y==[] then y=gettempvar();typ='0';else typ='-2',end
if isname(stk(top-2)(1)) then
r=stk(top-2)(1),
else
r=gettempvar(1),
txt=[txt;r+'='+stk(stk(top-2)(1))+';']
end
txt=[txt;
y+'=[];for %xk='+r+','+y+'=['+y+',fft(%xk,-1)];end']
stk=list(y,typ,stk(top)(3),stk(top)(4),'1')
elseif job=='2' then
y=lhsvarsnames()
if y==[] then y=gettempvar(1);typ='0';else typ='-2',end
if isname(stk(top-2)(1)) then
r=stk(top-2)(1),
else
r=gettempvar(),
txt=[txt;r+'='+stk(stk(top-2)(1))+';']
end
txt=[txt;
y+'=[];for %j=1:size('+r+',1),'+y+'=['+y+';fft('+r+'(%j,:),-1)];end']
stk=list(y,typ,stk(top)(3),stk(top)(4),'1')
else
args=[];for k=1:3,args=[stk(top)(1),args];top=top-1,end;top=top+1
stk=list('mtlb_fft'+rhsargs(args),'0',stk(top)(3),stk(top)(4),'1')
end
else
args=[];for k=1:3,args=[stk(top)(1),args];top=top-1,end;top=top+1
stk=list('mtlb_fft'+rhsargs(args),'0','?','?','1')
end
end
|
