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GRAPH.BAK
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GRAPH.BAK
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#include<graphics.h>
#include<iostream.h>
#include<math.h>
#include<stdlib.h>
#include<stdio.h>
#include<conio.h>
#include<errno.h>
#include<dos.h>
#include<process.h>
#include<string.h>
int sx;
int sy;
void initialize_graphics(int c=2)
{
int gdriver = EGA, gmode = EGAHI, errorcode;
initgraph(&gdriver, &gmode, "C:\\TC\\BGI");
setbkcolor(2);
sx=getmaxy()/2;
sy=getmaxx()/2;
}
void draw_graph(int c=5)
{
for(int xa=0;xa<getmaxx();xa++)
putpixel(xa,getmaxy()/2,c);
for(int ya=0;ya<getmaxy();ya++)
putpixel(getmaxx()/2,ya,c);
putpixel(getmaxx()/2,getmaxy()/2,c+1);
}
void initialize_background(int c=5)
{
clrscr();
cleardevice();
setbkcolor(c);
}
void plotg(double x,double y,int c,double sx,double sy)
{
setcolor(7);
if(fabs(x)<getmaxy())
{
if(y>0)
{
if(sx+1>fabs(y))
{
putpixel(sy+x,sx-y,c);
lineto(sy+x,sx-(y));
}
}
if(y<0)
{
if(sx+1>fabs(y))
{
putpixel(sy+x,sx+fabs(y),c);
lineto(sy+x,sx+fabs(y));
}
}
}
}
void plot(double x=0,double y=0,int c=5,int ed=0,double len=10,int sx=500,int sy=500,double m=0)
{
char msg[30];
setcolor(c);
double theta=atan(m);
if(fabs(x)<sy)
{ if(y>0)
{ if(sx>=fabs(y))
{ putpixel(sy+x,sx-y,c);
lineto(sy+x,sx-(y));
/*
if(x%10==0)
{
sprintf(msg, "(%d, %d)",x,y);
outtextxy(sy+1+x,sx+1-(fabs(y)),msg);
}
*/
if(ed==1)
line(sy+x-len*sin(theta),sx-y-len*cos(theta),sy+x+len*sin(theta),sx-y+len*cos(theta));
}
}
if(y<0)
{ if(sx>=fabs(y))
{ putpixel(sy+x,sx+fabs(y),c);
lineto(sy+x,sx+fabs(y));
/*
if(asdf%1000==0)
{
sprintf(msg, "(%d, %d)",x,y);
outtextxy(sy+1+x,sx+1+(fabs(y)),msg);
}
*/
if(ed==1)
line(sy+x-len*sin(theta),sx+fabs(y)-len*cos(theta),sy+x+len*sin(theta),sx+fabs(y)+len*cos(theta));
}
}
}
}
class figurecal
{
public:
char ch1,ch,ch2,ch3,ch4;
char ans;
int a,b,c,res,cir,cho,cu,cub,con,cyl,sph,y0,l;
int color;
int bottom1;
int midx, midy;
int stangle , endangle;
int xradius,yradius;
int x1,y1;
int left,top,right,bottom;
int a1,a2,a3,a4,b1,b2,b3,b4;
float x,y,z,d,w,side,area,pm,len,bre,rad,circum;
long double lo;
};
void intro()
{
class figurecal
{
public:
char ch1,ch,ch2,ch3,ch4;
char ans;
int a,b,c,res,cir,cho,cu,cub,con,cyl,sph,y0,l;
int color;
int bottom1;
int midx, midy;
int stangle , endangle;
int xradius,yradius;
int x1,y1;
int left,top,right,bottom;
int a1,a2,a3,a4,b1,b2,b3,b4;
float x,y,z,d,w,side,area,pm,len,bre,rad,circum;
long double lo;
};
figurecal o;
o.color=0;
o.bottom1=0;
o.stangle = 0, o.endangle = 360;
o.xradius = 280, o.yradius = 180;
setbkcolor(4);
for(;o.bottom1<=470;o.bottom1++)
{
setcolor(15);
delay(6);
rectangle(0,10,650,o.bottom1);
}
o.midx = getmaxx() / 2;
o.midy = getmaxy() / 2;
setcolor(13);
setbkcolor(15);
for(o.x1=160,o.y1=0;o.y1<190;o.y1++,o.color++)
{
delay(15);
cleardevice();
setcolor(o.color);
settextstyle(4,0,7);
outtextxy(o.x1,o.y1,"WELCOME");
}
for(;o.xradius>131,o.yradius>81;o.xradius--,o.yradius--,o.color++)
{
setcolor(o.color);
ellipse(o.midx, o.midy, o.stangle, o.endangle,o.xradius, o.yradius);
delay(20);
cleardevice();
settextstyle(4,0,7);
outtextxy(160,190,"WELCOME");
}
setbkcolor(4);
setcolor(14);
settextstyle(4,0,7);
outtextxy(160,190,"WELCOME");
clrscr();
setbkcolor(5);
settextstyle(4,0,4);
outtextxy(80,30,"TOPIC:");
for( o.w=15;o.w>0;o.w--)
{
settextstyle(4,0,7);
setcolor(o.w);
delay(300);
outtextxy(50,100,"Graph Calculator");
}
setcolor(0);
settextstyle(6,0,2);
outtextxy(50,300,"Guided by: Mrs.Sona Maria");
delay(500);
}
void trig()
{
float s=0;
initialize_graphics();
initialize_background(0);
draw_graph(5);
int sx=getmaxy()/2;
int sy=getmaxx()/2;
double x,y;
for(x=-sy;x<sy;x+=0.00005)
{
y=sin(x);
plotg(x*100,y*50,7,sx,sy);
// plot(x*50,y*80,7,sx,sy);
}
int dec,sign;
do{
char choice;
cout<<"\n\t Do you wish to continue (Y/N)";
cin>>choice;
if(choice=='n'||choice=='N')
{
cout<<"\n\t Thank You for using our software";
break;
}
else
{
{
cout<<"\n\t Do you wish to view the previous graph too?";
cin>>choice;
if(choice=='N'||choice=='n')
{
cleardevice();
}
}
setcolor(BLACK );
outtextxy(100, 60, "Enter the function");
setfillstyle( SOLID_FILL, WHITE );
bar3d( 0, 0, 100, 100, 1, 1) ;
int x1 = 100, index = 0 ;
char Func[10], ch[2] ;
ch[1] = '\0' ;
ch[0] = getch() ;
while( ch[0] != '\r')
{
Func[index++] = ch[0] ;
outtextxy( x1, 105, ch ) ;
x1 += 8 ;
ch[0]=getch();
if(ch[0]==8)
{
ch[0]=getch();
cout<<"backspace noted";
Func[--index]=ch[0];
}
Func[index] = '\0';
}
// cout<<Func;
draw_graph(5);
int flag=0;
cout<<Func;
if(strcmpi(Func,"x^n") == 0 )
{
int n;
n=0;
cout<<"\n\t Enter the value of n";
cin>>n;
for(x=-sy;x<sy;x+=0.00005)
{
y=pow(x,n);
plotg(x*100, y*100, 8, sx, sy);
flag=1;
}
}
for(x=-sy;x<sy;x+=0.00005)
{
if(strcmpi(Func,"sin(x)") == 0 )
{
y=sin( x ) ;
plotg(x*100,y*100,7,sx,sy);
flag=1;
}
else
if(strcmpi(Func,"cos(x)")==0)
{
y=cos(x);
plotg(x*100, y*100, 7, sx, sy);
flag=1;
}
else
if(strcmpi(Func,"tan(x)")==0)
{
y=tan(x);
plotg(x*100, y*50, 8, sx, sy);
flag=1;
}
else
if(strcmpi(Func,"cot(x)")==0)
{
y=1/tan(x);
plotg(x*100, y*100, 8, sx, sy);
flag=1;
}
else
if(strcmpi(Func,"sec(x)")==0)
{
y=1/cos(x);
plotg(x*100, y*100, 8, sx, sy);
flag=1;
}
else
if(strcmpi(Func,"cosec(x)")==0)
{
y=1/sin(x);
plotg(x*100, y*100, 8, sx, sy);
flag=1;
}
else
if(strcmpi(Func,"sin(x)+cos(x)")==0)
{
y=sin(x)+cos(x);
plotg(x*100, y*100, 8, sx, sy);
flag=1;
}
else
if(strcmpi(Func,"e^-x")==0)
{
y=exp(-x);
plotg(x*100, y*100, 8, sx, sy);
flag=1;
}
else
if(strcmpi(Func,"sin(cos(x))")==0)
{
y=sin(cos(x));
plotg(x*100, y*100, 8, sx, sy);
flag=1;
}
else
if(strcmpi(Func,"cos(sin(x))")==0)
{
y=cos(sin(x));
plotg(x*100, y*100, 8, sx, sy);
flag=1;
}
else
if(strcmpi(Func,"atan(x)")==0)
{
y=atan(x);
plotg(x*100, y*100, 8, sx, sy);
flag=1;
}
else
if(strcmpi(Func,"gint(x)")==0)
{
y=floor(x);
plotg(x*100, y*100, 8, sx, sy);
flag=1;
}
else
if(strcmpi(Func,"ceil(x)")==0)
{
y=ceil(x);
plotg(x*100, y*100, 8, sx, sy);
flag=1;
}
else
if(strcmpi(Func,"log(x)")==0)
{
y=log(fabs(x));
plotg(x*100, y*100, 8, sx, sy);
flag=1;
}
else
if(strcmpi(Func,"x")==0)
{
y=x;
plotg(x*100, y*100, 8, sx, sy);
flag=1;
}
else
if(strcmpi(Func,"x^2")==0)
{
y=x*x;
plotg(x*100, y*100, 8, sx, sy);
flag=1;
}
else
if(strcmpi(Func,"e^2x")==0)
{
y=exp(2*x);
plotg(x*100, y*100, 8, sx, sy);
flag=1;
}
else
if(strcmpi(Func,"2x")==0)
{
y=2*x;
plotg(x*100, y*100, 8, sx, sy);
flag=1;
}
else
if(strcmpi(Func,"e^8x")==0)
{
y=exp(8*x);
plotg(x*100, y*100, 8, sx, y);
flag=1;
}
else
if(strcmpi(Func,"2^x")==0)
{
y=pow(2,x);
plotg(x*100, y*100, 8, sx, y);
flag=1;
}
else
if(strcmpi(Func,"-2^x")==0)
{
y=pow(-2,fabs(x));
plotg(x*100, y*100, 8, sx, y);
flag=1;
}
else
if(strcmpi(Func,"e^x")==0)
{
y=exp(x);
plotg(x*100, y*100, 8, sx, sy);
flag=1;
}
else
if(strcmpi(Func,"sin(x)-cos(x)")==0)
{
y=sin(x)-cos(x);
plotg(x*100, y*100, 8, sx, sy);
flag=1;
}
else
if(strcmpi(Func,"e^e^x")==0)
{
y=exp(exp(x));
plotg(x*100, y*100, 8, sx, sy);
flag=1;
}
else
if(strcmpi(Func,"sinh(x)") == 0 )
{
y=sinh(x);
plotg(x*100,y*100,8,sx,sy);
flag=1;
}
else
if(strcmpi(Func,"cosh(x)") == 0 )
{
y=cosh(x) ;
plotg(x*100,y*100,8,sx,sy);
flag=1;
}
else
if(strcmpi(Func,"tanh(x)") == 0 )
{
y=tanh(x) ;
plotg(x*100,y*100,8,sx,sy);
flag=1;
}
else
if(strcmpi(Func,"coth(x)") == 0 )
{
y=1/tanh(x) ;
plotg(x*100,y*100,8,sx,sy);
flag=1;
}
else
if(strcmpi(Func,"cosech(x)") == 0 )
{
y=1/sinh(x) ;
plotg(x*100,y*100,8,sx,sy);
flag=1;
}
else
if(strcmpi(Func,"sech(x)") == 0 )
{
y=1/cosh(x) ;
plotg(x*100,y*100,8,sx,sy);
flag=1;
}
else
if(strcmpi(Func,"cos(e^x)") == 0 )
{
y=(cos(exp(x)));
plotg(x*100,y*100,8,sx,sy);
flag=1;
}
else
if(strcmpi(Func,"tan(e^x)") == 0 )
{
y=tan(exp(x));
plotg(x*100,y*100,7,sx,sy);
flag=1;
}
else
if(strcmpi(Func,"cot(e^x)") == 0 )
{
y=1/tan(exp(x)) ;
plotg(x*100,y*100,7,sx,sy);
flag=1;
}
}//close for
if(flag==0)
{
cout<<"\n\t Sorry....Looks like the function doesn't exist \n\t or you didn't enter it in the prescribed format \n\t Apologise for inconvenience caused";
}
getch();
}//close else
}while(1);//close do
}
void outro()
{ initialize_graphics();
initialize_background(5);
class figurecal
{
public:
char ch1,ch,ch2,ch3,ch4;
char ans;
int a,b,c,res,cir,cho,cu,cub,con,cyl,sph,y0,l;
int color;
int bottom1;
int midx, midy;
int stangle , endangle;
int xradius,yradius;
int x1,y1;
int left,top,right,bottom;
int a1,a2,a3,a4,b1,b2,b3,b4;
float x,y,z,d,w,side,area,pm,len,bre,rad,circum;
long double lo;
}o;
for(o.left=0,o.top=0,o.right=640,o.bottom=480,o.y0=0,o.l=0,o.color=0;o.left<149,o.right>501,o.top<149,o.bottom>356;o.left++,o.top++,o.right--,o.bottom--,o.y0+=2,o.l++,o.color++)
{
setcolor(o.color);
rectangle(o.left,o.top,o.right,o.bottom);
delay(2);
settextstyle(4,0,4);
outtextxy(151,147,"************************* ");
outtextxy(151,300,"************************* ");
settextstyle(10,0,4);
outtextxy(170,210,"THANK YOU");
delay(8);
}
setcolor(10);
settextstyle(4,0,4);
outtextxy(151,147,"************************* ");
outtextxy(151,300,"************************* ");
settextstyle(10,0,4);
outtextxy(170,210,"THANK YOU");
delay(100);
exit(0);
}
class myCircle
{
private:
int x,y,r,d,x1,y1;
public:
myCircle();
void showCircle();
};
myCircle::myCircle()
{
x=0;y=0;
cout<<endl<<endl<<"Enter The Co-Ordinates Of The Circle :=";
cin>>x>>y;
y=-y;
cout<<endl<<endl<<"Enter The Radius Of The Circle =";
cin>>r;
cleardevice();
cout<<"\n\t The equation of the circle is (x-"<<x<<")^2-(y-"<<y<<")^2="<<r*r;
}
void myCircle::showCircle()
{
char *s;
x1=0;y1=r;
y1=r;
d=3+(2*r);
while(x1<=y1)
{
putpixel((x+x1+320),(y+y1+240),5);
putpixel((x-x1+320),(y+y1+240),5);
putpixel((x+x1+320),(y-y1+240),5);
putpixel((x-x1+320),(y-y1+240),5);
putpixel((x+y1+320),(y+x1+240),5);
putpixel((x-y1+320),(y+x1+240),5);
putpixel((x+y1+320),(y-x1+240),5);
putpixel((x-y1+320),(y-x1+240),5);
if(d<0)
d+=4*x1+6;
else
{
d+=4*(x1-y1)+10;
y1--;
}
x1++;
}
setcolor(5);
outtextxy(318+x,235+y,".");
setcolor(15);
sprintf(s,"Center(%d,%d)",x,y*-1);
outtextxy(20,10,"The Center Is At");
outtextxy(20,20,s);
sprintf(s,"Radius=%d",r);
outtextxy(20,30,s);
getch();
}
void circle()
{
initialize_graphics();
initialize_background(5);
setbkcolor(0);
int i,j;
window(1,1,40,25);
myCircle a;
rectangle(120,40,320,240);
rectangle(320,40,520,240);
rectangle(120,240,320,440);
rectangle(320,240,520,440);
for(i=130;i<=510;i+=10)
for(j=50;j<=430;j+=10)
putpixel(i,j,15);
for(i=130;i<=510;i+=10)
{
if(i==320)
continue; outtextxy(i,237,"-");
}
for(i=50;i<=430;i+=10)
{
if(i==240)
continue;
outtextxy(317,i,"_");
}
outtextxy(310,230,"O");
outtextxy(530,240,"X");
outtextxy(320,450,"-Y");
outtextxy(100,240,"-X");
outtextxy(320,30,"Y");
a.showCircle();
}
void ellipse()
{
clrscr();
initialize_graphics();
initialize_background(5);
setbkcolor(0);
int xc,yc,x,y;
float p;
long rx,ry;
xc=getmaxx()/2;
yc=getmaxy()/2;
cout<<"Enter a:";
cin>>rx;
cout<<"Enter b:";
cin>>ry;
cleardevice();
if(rx>ry)
cout<<"The equation of the ellipse is x^2/"<<rx*rx<<" + y^2/"<<ry*ry<<"=1";
else
cout<<"The equation of the ellipse is y^2/"<<ry*ry<<" + x^2/"<<rx*rx<<"=1";
p=ry*ry-rx*rx*ry+rx*rx/4;
x=0;y=ry;
while(2.0*ry*ry*x<=2.0*rx*rx*y)
{
if(p < 0)
{
x++;
p = p+2*ry*ry*x+ry*ry;
}
else
{
x++;y--;
p = p+2*ry*ry*x-2*rx*rx*y-ry*ry;
}
putpixel(xc+x,yc+y,RED);
putpixel(xc+x,yc-y,RED);
putpixel(xc-x,yc+y,RED);
putpixel(xc-x,yc-y,RED);
}
p=ry*ry*(x+0.5)*(x+0.5)+rx*rx*(y-1)*(y-1)-rx*rx*ry*ry;
while(y > 0)
{
if(p <= 0)
{
x++;y--;
p = p+2*ry*ry*x-2*rx*rx*y+rx*rx;
}
else
{
y--;
p = p-2*rx*rx*y+rx*rx;
}
putpixel(xc+x,yc+y,RED);
putpixel(xc+x,yc-y,RED);
putpixel(xc-x,yc+y,RED);
putpixel(xc-x,yc-y,RED);
}
int i,j;
rectangle(120,40,320,240);
rectangle(320,40,520,240);
rectangle(120,240,320,440);
rectangle(320,240,520,440);
for(i=130;i<=510;i+=10)
for(j=50;j<=430;j+=10)
putpixel(i,j,15);
for(i=130;i<=510;i+=10)
{
if(i==320)
continue;
outtextxy(i,237,"-");
}
for(i=50;i<=430;i+=10)
{
if(i==240)
continue;
outtextxy(317,i,"_");
}
outtextxy(310,230,"O");
outtextxy(530,240,"X");
outtextxy(320,450,"-Y");
outtextxy(100,240,"-X");
outtextxy(320,30,"Y");
}
void linear()
{ initialize_background(5);
cout<<"Enter the slope and the y intercept of the line(int,int) :";
int m,c;
cin>>m>>c;
char msg[30];
initialize_background(0);
draw_graph(15);
int y;
for(int x=-sx;x<sx;x++)
{
y=x*m+c;
if(sy>fabs(y))
{
if(x>0)
lineto(sx+x,sy-y);
else
moveto(sx+x,sy-y);
if(x%10==0)
{
putpixel(sx+x-2,sy-y,5);
sprintf(msg, "(%d, %d)",x,y);
outtextxy(sx+x,sy-y,msg);
}
}
}
}
void quadratic()
{ initialize_background();
cout<<"Enter a b and c of Quadratic ax^2+bx+c=0 :";
int a,b,c;
cin>>a>>b>>c;
char msg[30];
initialize_background(0);
draw_graph(15);
int y;
for(int x=-sx;x<sx;x++)
{
y=a*x*x+b*x+c;
if(sy>fabs(y))
{
if(x!=-sx)
lineto(sx+x,sy-y);
else
moveto(sx+x,sy-y);
putpixel(sx+x-2,sy-y,5);
if(x%10==0)
{
sprintf(msg, "(%d, %d)",x,y);
outtextxy(sx+x,sy-y,msg);
}
}
}
}
void cubic()
{ initialize_background();
cout<<"Enter a b c and d of the Cubic Eqaution a^3+bx^2+cx+d=0 : ";
int a,b,c,d;
cin>>a>>b>>c>>d;
char msg[30];
initialize_background(0);
draw_graph(15);
int y;
for(int x=-sx;x<sx;x++)
{
y=a*x*x*x+b*x*x+c*x+d;
if(sy>fabs(y))
{
if(x!=-sx)
lineto(sx+x,sy-y);
else
moveto(sx+x,sy-y);
putpixel(sx+x-2,sy-y,5);
if(x%10==0)
{
sprintf(msg, "(%d, %d)",x,y);
outtextxy(sx+x,sy-y,msg);
}
}
}
}
void sine()
{
initialize_background();
int scx,scy;
cout<<"Enter scale along x axis and y axis : ";
cin>>scx>>scy;
char msg[30];
initialize_background(2);
draw_graph(15);
int y;
for(int x=-sx*scx;x<sx*scx;x+=scx)
{
y=sin(x)*scy;
if(sy>fabs(y)&&sx>fabs(x))
{
if(x!=-sx)
lineto(sx+x,sy-y);
else
moveto(sx+x,sy-y);
putpixel(sx+x-2,sy-y,5);
if(x%10==0)
{
sprintf(msg, "(%d, %d)",x,y);
outtextxy(sx+x,sy-y,msg);
}
}
}
}
void bubble()
{ initialize_background(0);
int sx=getmaxx();
int sy=getmaxy();
int a[1000];
int dx=25;
int n=sx/dx;
for(int i=0;i<n;i++)
{
a[i]=random(sy);
rectangle(i*dx,sy-a[i],(i+1)*dx,sy);
// getimage
}
cout<<"Number of elments to sort in 1D Array : "<<n;
getch();
initialize_background(0);
int com=0;
int c=0;
for(i=0;i<n-1;i++)
{
for(int j=0;j<n-i-1;j++)
{
if(a[j]>a[j+1])
{
int t;
t=a[j];
a[j]=a[j+1];
a[j+1]=t;
com++;
}
clrscr();
cleardevice();
cout<<"No of Array Accesses :"<<com;
cout<<"\nNo of computations "<<c;
for(int K=0;K<n;K++)
{
setcolor(5);
rectangle(K*dx,sy-a[K],(K+1)*dx,sy);
}
c++;
}
}
getch();
}
int matherr (struct exception *a)
{
if (errno==EDOM)
{ return 1;
}
return 0;
}
int asdf=0;
void g()
{
#define f(x) exp(x)
extern int errno;
initialize_graphics();
initialize_background(0);
draw_graph();
int sx=getmaxx()/2;
int sy=getmaxy()/2;
double x,y,dx,s=0,scx,scy,m,d;
int c=3,ed;
double len=30;
int u,l;
dx=0.001;
l=-50;
u=100;
scx=100;
scy=100;
for(x=-sx;x<sx;x+=dx)
{
if(fabs(x*scx)<sx)
{ y=f(x);
if(errno!=EDOM)
{
y*=scy;
x*=scx;
if(x>=l&&x<=u)
{
s+=y*dx;
line(sx+x,sy,sx+x,sy-y);
}
plot(x,y,c,0,len,sx,sy,m);
asdf++;
delay(1);
m=(f(x+dx)-f(x))/dx;
m=-1/m;
y/=scy;
x/=scx;
}
}