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Файл:Лабораторные работы / Лабораторные работы - 2003 / programed
.txt Line 1 Col 1 Insert Indent Unindent
program stat;
uses crt;
const
np=9; nk=6; k=10;
var
vm,v,ak:array[1..nk] of real; p:array[1..np] of real;
hg,h:array[1..2] of real;
a,b,c,e,ro,pn,g,x:real;
i,kl:integer;
bu:boolean;
FUNCTION SGN(ab:real):integer;
begin
if ab>0 then sgn:=1;
if ab<0 then sgn:=-1;
if ab=0 then sgn:=0;
end;
FUNCTION FUNC (x:real):real;
label 300,400;
var vm:array[1..6] of real;fx:real;
begin
h[1]:=x;
p[9]:=pn * hg[1] / (hg[1] - h[1]);
p[6]:=p[9] + ro * g * h[1] *0.000001;
v[1]:=ak[1] * SGN(p[1] - p[6]) * SQRt(ABS(p[1] - p[6]));
v[3]:=ak[3] * SGN(p[6] - p[3]) * SQRT(ABS(p[6] - p[3]));
v[6]:=v[1] - v[3];
p[7]:=p[6] - SGN(v[6]) * sqr(v[6] / ak[6]);
v[2]:=ak[2] * SGN(p[2] - p[7]) * SQRT(ABS(p[2] - p[7]));
v[5]:=ak[5] * SGN(p[7] - p[5]) * SQRt(ABS(p[7] - p[5]));
v[4]:=ak[4] * SGN(p[7] - p[4]) * SQRT(ABS(p[7] - p[4]));
fx:=(v[2] + v[6] - v[4]-v[5]) * ro;
FOR i:=1 TO 6 do
vm[i]:=v[i] * ro;
IF kl = 0 THEN FUNC:=fx;
IF kl = 1 THEN writeln('x = ', x, ' fx = ', fx);
end;
PROCEDURE MPD(a,b,eps:real; var bu:boolean; var xcon:real);
var fa,fb,x,fx:real;
label met;
begin
fa:=func(a);
fb:=func(b);
if fa*fb>0 then
begin
writeln(' РЕШЕНИЯ НЕТ '); bu:=false; goto met
end;
repeat
x:=(a+b)/2; fx:=func(x);
if fx*fa<0 then b:=x else a:=x;
until abs(a-b)<eps;
xcon:=abs(a+b)/2; bu:=true;
met:
end;
begin
writeln('OTHOCuTELbHA9I POGRESHNOSTb e = (%)');
read(e);
writeln('BbICOTA EMOKOCTu 1(М) = ');
read( hg[1]);
writeln('BbICOTA EMKOCTu 2(M) = ');
read( hg[2]);
writeln('PLOTNOSTb ro = (кг/м3)');
read(ro);
writeln('NACHALNOE DAVLENIE pn = (МPа) ');
read(pn);
for i := 1 to 5 do
begin
writeln ('DAVLENIE p[',i,'] = ');
read(p[i]);
end;
for i:=1 to 6 do
begin
writeln (' KOEFICIENT PROPUCKNOI CPOCOBNOCTI ak[',i,'] = ');
read(ak[i]);
end;
writeln('VIVOD PROMEGHUTOCHNIH RESULTATOV : NET - 0 CHAST - 1 POLN
read(kl);
IF kl = 2 THEN writeln(' h p(5-7) vm');
g:= 9.815;
e:= e / 100;
a:= 0;
b:= hg[1] * (1 - e);
MPD(a, b, e,bu, x);
if bu then
begin
a:= ro * g * 0.000001;
b:= p[7] + ro * g * hg[2] *0.000001;
c:= (p[7] - pn) * hg[2];
h[2]:= (b - SQRt(b *b - 4 * a * c)) / 2 / a;
p[8]:= pn * hg[2] / (hg[2] - h[2]);
FOR i := 1 TO 6 do
vm[i]:= v[i] * ro;
writeln('VIVOD REZULTATA');
for i:=1 to 2 do
writeln('VICOTA h[',i,'] = ',h[i]:k:k);
writeln('DAVLENIE p[4] =',p[4]:k:K);
for i:=7 to 9 do
writeln('DAVLENIE p[',i,'] =',p[i]:k:k);
for i:=1 to 6 do
writeln('PACXOD vm[',i,'] =',vm[i]:k:k);
end
else
begin
kl:=2;
writeln('a=',a:k:k);
writeln(' h p(5-7) vm');
x:=func(a);
writeln('fa= ',x);
writeln('b=',b);
writeln(' h p(5-7) vm');
x:=func(b);
writeln('fb= ',x);
end;
repeat until keypressed
END.
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