//
Srcols (matr, rows, cols);
Return 0;
}
5.2.3
() . , , .
- , , ' , .
5.4 c ( =10-3 ).
// P5_4.CPP
//
#include <math.h>
#include < iostream >
Using namespace std;
const float e =1 e-3;
float fn1 (float x) // 1-
{
return sgrt (1 +log (x));
}
float fn2 (float x) // 2-
{
return log (1 +pow (x,2)) / (1+pow (x,2));
}
float ft (int n, float a,float b, float fun(float)) //
{
Int i;
float s1,h, s=0;
Do
{ s1 =s;
h = (b -a) /n;
s = (fun (a) +fun (b)) / 2;
for (i = 1; i <= n-1; i++)
s += fun (a + i *h);
s *= h; n *= 2;
} while (fabs (s-s1) > e);
return s; }
Int main ()
{
Float y;
y = ft (20, 2, 2, 3.0, fn1) +ft (20, 0, 1.0, fn2);
cout << "y=" << y << endl;
Return 0;
}
:
y = 1.29012
5.2.4
' . , ( ). , , , return. . , :
Double sgr (double);
Main()
{
cout << " =" << sgr (10) << endl;
}
Double sqr (double p)
//
{
return p*p;
}
:
= 100.
return . , , , , , .
' ¾ - , ( ) . , . "*", , .
|
|
|
5.5 x , a, b c .
// P5_5.CPP ¾
//
// " "
#include < iostream >
Using namespace std;
float ur (float x, float =0., floatb b =0.,float c=0.);
Int main ()
{
float =1., b = 2., c = 3., x = 0.5, y;
cout << " " << endl;
y = ur (x, a, b, c);
cout << " y = "<< y << endl;
cout << " x, a, b " << endl;
y =ur (x, a, b);
cout << " y = "<< y << endl;
cout << " x " << endl;
y =ur (x);
cout << " y = "<< y << endl;
}
//
