Juliaset.cpp
```//Julia Sets in C++
//by James Rankin

#include
#include
#include
#include
#include
#include

void runfractal(void);
int propercolor(double);
int huge detectvga256(void);

double cx, cy;
const int steppingratio = 256 / 4;

void main() {
clrscr();
cout << "Julia Sets on C++\n";
cout << "by James Rankin\n";
cout << "\n";
cout << "Input the CX value.\n";
cin >> cx;
cout << "\nInput the CY value.\n";
cin >> cy;
cout << "\nGenerating fractal...";
delay(900);
int graphdriver = installuserdriver("SVGA256", detectvga256);
graphdriver = DETECT;
int graphmode;
initgraph(&graphdriver, &graphmode, "");
//	settextstyle(TRIPLEX_FONT,HORIZ_DIR,5);

runfractal();
closegraph();
}

void runfractal(void) {
double a, b, x0, x1, y0, y1;
int hey, col;
for(int aa = 0; aa <= 512; aa++) {
a = aa / 10.24;
for (int bb = 0; bb <= 768; bb++) {
b = bb / 7.68;
x0 = -2 + a / 25;
y0 = 2 - b / 25;
for (int i = 0; i <= 20; i++) {
x1 = x0 * x0 - y0 * y0 + cx;
y1 = 2 * x0 * y0 + cy;
if (x1*x1 + y1*y1 > 4) {
hey = 0;
i = 21;
} else {
hey = 1;
x0 = x1;
y0 = y1;
}//of if
}//of for
if (hey==1) {
col = propercolor(x1*x1 + y1*y1);
putpixel((int)aa,(int)bb,col);
if (aa != 512) putpixel(1024-(int)aa,768-(int)bb,col);
}//of if
}//of for
}//of for
sound(440);
delay(30);
nosound();
getch();
}//of method

int propercolor(double frac) {
return((int)frac * steppingratio + 1);
}//of method

int huge detectvga256(void) {
return 4;
}//of method```