program
predel;
uses
crt;
const
d=1e-
8
;
type
func=
function
(x:
real
):
real
;
var
L1,L2,L3,L4, epsilon:
real
; i:
integer
;
{
$F
+}
function
f1(x:
real
):
real
;
begin
f1:=sin(x)/x
end
;
function
f2(x:
real
):
real
;
begin
f2:=sin(
5
*x)/sin(
6
*x);
end
;
function
f3(x:
real
):
real
;
begin
f3:=(sqr(sin(x))-sqr(sqr(sin(x)/cos(x))))/(
3
*sqr(x)+
5
*sqr(sqr(x)));
end
;
function
f4(x:
real
):
real
;
begin
f4:=(sqrt(
1
-x)-
3
)/(-exp(ln(-x)/
3
)+
2
)
end
;
function
lim(f:func; a:
real
;eps:
real
):
real
;
var
pme:
integer
; y1, y2, x:
real
;
begin
pme:=-
1
;y2:=f(a+
5
);
i:=
1
;
repeat
y1:=y2;
pme:=pme*(-
1
);;
x:=a+pme/i;
y2:=f(x);
i:=i+
1
;
until
(
abs
(y2-y1) lim:=y2;
end
;
Begin
clrscr; epsilon:=
1
;
writeln
(
'Пределы'
);
repeat
L1:=lim(f1,
0
, epsilon);
L2:=lim(f2, pi, epsilon);
L3:=lim(f3,
0
, epsilon);
L4:=lim(f4, -
8
, epsilon);
writeln
(
'epsilon='
, epsilon:
10
:
8
,
' L1='
,L1:
8
:
5
,
' L2='
, L2:
8
:
5
,
' L3='
, L3:
8
:
5
,
' L4='
, L4:
8
:
5
);
epsilon := epsilon*
0.1
;
until
epsilon < d;
readln;
End
.