Реферат Розробка програми для розв'язання систем лінійних рівнянь

> gotoxy (1,1);

textcolor (RED);

cprintf ("% s", "H");

textcolor (BLACK);

cprintf ("% s", "elp");

gotoxy (9,1);

textcolor (RED);

cprintf ("% s", "I");

textcolor (BLACK);

cprintf ("% s", "nput");

gotoxy (18,1);

textcolor (RED);

cprintf ("% s", "D");

textcolor (BLACK);

cprintf ("% s", "ecision");

gotoxy (29,1);

textcolor (RED);

cprintf ("% s", "O");

textcolor (BLACK);

cprintf ("% s", "utput");

window (1,25,80,25);

textbackground (LIGHTGRAY);

clrscr ();

cprintf ("Alt + X - exit ");

gotoxy (70,1);

textcolor (BLACK);

}

// --------------------------------------------- ---------------------------------

// курсор

// --------------------------------------------- ---------------------------------

void cursor (int n)

{

if (n == 1)

{

window (1,1,5,1);

textbackground (GREEN);

clrscr ();

textcolor (RED);

cprintf ("% s", "H");

textcolor (BLACK);

cprintf ("% s", "elp");

window (5,1,5,1);

textbackground (LIGHTGRAY);

clrscr ();

}

if (n == 2)

{

window (9,1,14,1);

textbackground (GREEN);

clrscr ();

textcolor (RED);

cprintf ("% s", "I");

textcolor (BLACK);

cprintf ("% s", "nput");

window (14,1,14,1);

textbackground (LIGHTGRAY);

clrscr ();

}

if (n == 3)

{

window (18,1,26,1);

textbackground (GREEN);

clrscr ();

textcolor (RED);

cprintf ("% s", "D");

textcolor (BLACK);

cprintf ("% s", "ecision");

window (26,1,26,1);

textbackground (LIGHTGRAY);

clrscr ();

}

if (n == 4)

{

window (29,1,35,1);

textbackground (GREEN);

clrscr ();

textcolor (RED);

cprintf ("% s", "O");

textcolor (BLACK);

cprintf ("% s", "utput");

window (35,1,35,1);

textbackground (LIGHTGRAY);

clrscr ();

}

if (n == 6)

{

window (3,3,8,3);

textbackground (GREEN);

clrscr ();

textcolor (RED);

cprintf ("% s", "A");

textcolor (BLACK);

cprintf ("% s", "bout");

window (8,3,8,3);

textbackground (LIGHTGRAY);

clrscr ();

}

if (n == 7)

{

window (3,4,7,4);

textbackground (GREEN);

clrscr ();

textcolor (RED);

cprintf ("% s", "T");

textcolor (BLACK);

cprintf ("% s", "ask");

window (7,4,7,4);

textbackground (LIGHTGRAY);

clrscr ();

}

if (n == 8)

{

window (10,3,18,3);

textbackground (GREEN);

clrscr ();

textcolor (RED);

cprintf ("% s", "K");

textcolor (BLACK);

cprintf ("% s", "eyboard");

window (18,3,18,3);

textbackground (LIGHTGRAY);

clrscr ();

}

if (n == 9)

{

window (10,4,14,4);

textbackground (GREEN);

clrscr ();

textcolor (RED);

cprintf ("% s", "F");

textcolor (BLACK);

cprintf ("% s", "ile");

window (14,4,14,4);

textbackground (LIGHTGRAY);

clrscr ();

}

if (n == 10)

{

window (30,3,37,3);

textbackground (GREEN);

clrscr ();

textcolor (RED);

cprintf ("% s", "D");

textcolor (BLACK);

cprintf ("% s", "isplay");

window (37,3,37,3);

textbackground (LIGHTGRAY);

clrscr ();

}

if (n == 11)

{

window (30,4,34,4);

textbackground (GREEN);

clrscr ();

textcolor (RED);

cprintf ("% s", "F");

textcolor (BLACK);

cprintf ("% s", "ile");

window (34,4,34,4);

textbackground (LIGHTGRAY);

clrscr ();

}

}

// --------------------------------------------- ---------------------------------

// функція введення натурального числа

// --------------------------------------------- ---------------------------------

int n_input (int max)

{

char ch;

char str [100];

int i = 0;

do

{

ch = (char) getch ();

if (i == 0)

{

if ((Ch> '0 ') && (ch <= '9'))

{

str [i + +] = ch;

putch (ch);

}

}

else

{

if ((Ch> = '0 ') && (ch <= '9'))

{

str [i + +] = ch;

...