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
55
56
57
58
59
60
61
62
63
64
|
// 09.10.04
// 09.10.05
// 09.10.06
// 14.10.24 numderivative used after 5.5
function Out=Derivative(varargin)
Nargs=length(varargin);
Out=[];
Fs=varargin(1);
Vv=varargin(2);
Np=3;
if type(Vv)==10
Prstr=strsubst(Vv,'[','(');
Prstr=strsubst(Prstr,']',')');
Tmp=part(Prstr,1);
if Tmp~='('
Prstr='('+Prstr+')';
end;
deff('Out=Tmpfun'+Prstr,'Out='+Fs);
Fs='Tmpfun'+Prstr;
Vv=varargin(Np);
Np=Np+1;
end;
Nd=[];
if Np<=Nargs
Nd=varargin(Np);
end;
Js=mtlb_findstr(Fs,'(');
JL=mtlb_findstr(Fs,',');
Je=mtlb_findstr(Fs,')');
Sep=[Js(1),JL,Je];
Fse=Fs;
for I=1:length(Vv)
J1=Sep(I)+1;
J2=Sep(I+1)-1;
Tmp1=part(Fs,J1:J2);
Tmp2='X_'+string(I);
Fse=strsubst(Fse,Tmp1,Tmp2);
end;
function Ans=Tmpf(W)
X1=W(1);
if length(W)>1
X2=W(2);
else;
X2=%inf;
end;
if length(W)>2
X3=W(3);
else
X3=%inf;
end;
Tmp=Assign(Fse,'X_1',X1,'X_2',X2,'X_3',X3);
Ans=evstr(Tmp)';
endfunction;
Tmp1=getversion("scilab");
if Tmp1(1)*10+Tmp1(2)>=55 then
Out=numderivative(Tmpf,Vv')';
else
Out=derivative(Tmpf,Vv')';
end
if Nd~=[]
Out=Out(Nd,:)
end;
endfunction;
|