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| program riski;
uses crt;
type mas=array[1..10] of real;
mas2=array[1..10,1..10] of real;
var a:real;m,be,bm:mas;
B,E,b1,e1:mas2;
i,k,c,v,l,j,n:integer;
mp,ebe,mbm,ebm,x,mbe:real;
procedure base;
begin
for i:=1 to n do {1}
begin
for c:=1 to n do {2} begin
for v:=1 to n do
begin
B1[c,v]:=B[c,v];
e1[c,v]:=e[c,v]; end;
end;
for k:=1 to n do
begin
B[i,k]:=B1[i,k]/b1[i,i]; {3} E[i,k]:=E1[i,k]/b1[i,i];for l:=1 to n do
begin {4}
if l<>i then
begin
B[l,k]:=(B1[l,k]-(B1[l,i]*B1[i,k]/B1[i,i])); E[l,k]:=(E1[l,k]-(B1[l,i]*E1[i,k]/B1[i,i]));
end;
end;
end;
end;for i:=1 to n do {5}
begin
for j:=1 to n do
begin
be[i]:=be[i]+e[i,j]; end;
end;
for i:=1 to n do {6}
begin
for j:=1 to n do begin
Bm[i]:=Bm[i]+m[j]*e[i,j];
end;
end;
for i:=1 to n do begin {7}
ebe:=ebe+be[i]; {8}
ebm:=ebm+bm[i];
mbm:=mbm+m[i]*bm[i];
mbe:=mbe+m[i]*be[i]; end;
end;
procedure vvod;
label out1, out2, out3, out4, out5;
var z:real; mi,ma:real;begin
writeln;
writeln(' 9');
writeln;
writeln;writeln(' 10');
writeln;
writeln(' 11');
writeln;
writeln(' 12');writeln;
writeln;
writeln;
out1:
writeln;writeln(' 13');
write(' 14 ');
readln(n);
if (n<=0) or (n<>int(n)) or (n>10) then
begin writeln(' 15 ');
goto out1;
end;
writeln;
writeln(' 16');for i:=1 to n do
begin
E[i,i]:=1;
out2:
write(' ',i,'-ого вида : '); readln(m[i]);
if (m[i]<0) then
begin
writeln(' 17 ');
goto out2; end;
end;
writeln;
writeln('18');
writeln(' 19');writeln(' 20');
writeln(' 21');
writeln;
writeln(' 22 ');
for i:=1 to n do begin
out3:
write('23 ');
readln(z);
if (z<0) then begin
writeln(' 24 ');
goto out3;
end;
b[i,i]:=z*z; end;
writeln;
writeln(' 25');
writeln(' 26');
for i:=1 to n do begin
for j:=i+1 to n do {27}
begin
out4:
write(' ',i,'-го и ',j,'-го вида: '); readln(z);
if abs(z)>=sqrt(b[i,i])*sqrt(b[j,j]) then
begin
writeln(' 28 ');
goto out4; end;
b[i,j]:=z;
b[j,i]:=z;
if i<>j then
begin E[i,j]:=0;
end;
end;
end;
writeln;ma:=0;
for i:=1 to n do
begin
if m[i]>ma then ma:=m[i];
end;mi:=100000000;
for i:=1 to n do
begin
out5:
if m[i]<ma then begin
writeln(' 29');
write(' 30 ');
goto out5;
end; end;
end;
procedure vivod;
begin
writeln;writeln(' 31');
for i:=1 to n do
begin
x:=((mbm-mp*ebm)*be[i]+(mp*ebe-mbe)*bm[i])/(ebe*mbm-mbe*mbe);
writeln(' ',i,'-го вида: ',x:6:5);if x<0 then
begin
writeln(' 32');
writeln(' 33');
writeln(' 34');end;
end;
writeln;
writeln(' Минимальный риск портфеля: ',sqrt((mp*mp*ebe-
2*mp*mbe+mbm)/(ebe*mbm-mbe*mbe)):6:5);end;
begin
clrscr;
textcolor(yellow);textbackground(blue);
vvod;
base;
vivod;
readln;end. |
(
