#include //stdio.h
#include //conio.h
#include //math.h
#include //graphics.h
struct complex1
{
float a;
float b;
}cmp[10],csum,cdiff,cpro,cdiv;
int i=0;
float mod;
void init()
{
for(i=0;i<10;i++)
{
cmp[i].a=0;
cmp[i].b=0;
}
csum.a=0;csum.b=0;
cdiff.a=0;cdiff.b=0;
cpro.a=0;cpro.b=0;
}
void c_sum(int n)
{
for(i=0;i {
csum.a=csum.a+cmp[i].a;
csum.b=csum.b+cmp[i].b;
}
}
void c_sub()
{
cdiff.a=cmp[0].a-cmp[1].a;
cdiff.b=cmp[0].b-cmp[1].b;
}
void c_mul()
{
cpro.a=cmp[0].a*cmp[1].a-cmp[0].b*cmp[1].b;
cpro.b=cmp[0].b*cmp[1].a+cmp[0].a*cmp[1].b;
}
void c_mod()
{
mod=sqrt(pow(cmp[0].a,2)+pow(cmp[0].b,2));
}
void c_conj(struct complex1 *temp)
{
temp->a=temp->a;
temp->b=-temp->b;
}
void c_div()
{
struct complex1 t=cmp[0],q=cmp[0],d=cmp[1];
c_conj(&cmp[1]);
c_mul();
q=cpro;
cmp[0]=d;
c_mul();
cdiv.a=q.a/cpro.a;
cdiv.b=q.b/cpro.a;
cmp[0]=t;
cmp[1]=d;
}
void c_input(int n)
{
for(i=0;i {
printf("\nEnter the complex no. %d: ",i+1);
scanf("%f %f",&cmp[i].a,&cmp[i].b);
}
}
void c_print(int n)
{
printf("\nThe Complex Numbers are:\n");
for(i=0;i printf("\nComplex No.%d : %.2f+ i%.2f",i+1,cmp[i].a,cmp[i].b);
}
void complex()
{
int ch,n;
int ch1,ch2,j,np;
int gd=DETECT,gm,x,y;
init();
gotoxy(30,5);
printf("COMPLEX NUMBERS");
printf("\n1.Addition...");
printf("\n2.Subtraction...");
printf("\n3.Multiplication...");
printf("\n4.Modulus...");
printf("\n5.Division...");
printf("\n6.Conjugate...");
printf("\n7.2d Representation...");
printf("\n8.Exit...");
printf("\n\tEnter your choice:");
scanf("%d",&ch);
clrscr();
switch(ch)
{
case 1: printf("\nWELCOME TO ADDITION...");
init();
printf("\nEnter the number of complex numbers to add:");
scanf("%d",&n);
c_input(n);
clrscr();
c_print(n);
c_sum(n);
printf("\n\nThe Sum of the Complex Numbers: %.2f + i %.2f",csum.a,csum.b);
break;
case 2: printf("\nWELCOME TO SUBRACTION...");
init();
clrscr();
c_input(2);
c_print(2);
c_sub();
printf("\n\nThe Difference of the Complex Numbers: %.2f + i %.2f",cdiff.a,cdiff.b);
break;
case 3: printf("\nWELCOME TO MULTIPLICATION...");
init();
c_input(2);
clrscr();
c_print(2);
c_mul();
printf("\n\nThe Product of the Complex numbers: %.2f + i %.2f",cpro.a,cpro.b);
break;
case 4: printf("\nWELCOME TO MODULUS...:");
init();
c_input(1);
c_mod();
clrscr();
c_print(1);
printf("\nThe modulus is : %.2f",mod);
break;
case 5: printf("\nWELCOME TO DIVISION");
init();
c_input(2);
c_div();
clrscr();
c_print(2);
printf("\nThe Output is : %.2f + i%.2f",cdiv.a,cdiv.b);
break;
case 6: printf("\nWELCOME TO CONJUGATE");
init();
c_input(1);;
c_conj(&cmp[0]);
c_print(1);
break;
case 7: printf("\nWELCOME TO 2D REPRESENTATION:");
init();
printf("\n1.Point...");
printf("\n2.Line...");
printf("\n3.Rotation...");
printf("\nEnter your choice:");
scanf("%d",&ch1);
switch(ch1)
{
case 1:
c_input(1);
initgraph(&gd,&gm,"f:\\vikram\\compiler\\tc\\bgi");
x=getmaxx();
y=getmaxy();
setbkcolor(9);
line(x/2,0,x/2,y);
line(0,y/2,x,y/2);
outtextxy(x-20,y/2-10,"X");
outtextxy(x/2+10,10,"Y");
outtextxy(x/2-10,y/2+10,"O");
circle(x/2+20*cmp[0].a,y/2-20*cmp[0].b,2);
setcolor(GREEN);
line(x/2+20*cmp[0].a,y/2-20*cmp[0].b,x/2,y/2);
outtextxy(x/2+20*cmp[0].a+5,y/2-20*cmp[0].b+5,"Z");
getch();
break;
case 2: printf("\nEnter number of points:");
scanf("%d",&np);
c_input(np);
initgraph(&gd,&gm,"f:\\vikram\\compiler\\tc\\bgi\\");
x=getmaxx();
y=getmaxy();
setbkcolor(9);
line(x/2,0,x/2,y);
line(0,y/2,x,y/2);
outtextxy(x-20,y/2-10,"X");
outtextxy(x/2+10,10,"Y");
outtextxy(x/2-10,y/2+10,"O");
for(j=0;j circle(x/2+20*cmp[j].a,y/2-20*cmp[j].b,2);
for(j=0;j line(x/2+20*cmp[j].a,y/2-20*cmp[j].b,x/2+20*cmp[j+1].a,y/2-20*cmp[j+1].b);
getch();
break;
case 3: c_input(1);
printf("\n1.90 degree AntiClockwise...");
printf("\n2.90 degree Clockwise...\n");
scanf("%d",&ch2);
initgraph(&gd,&gm,"f:\\vikram\\compiler\\tc\\bgi");
x=getmaxx();
y=getmaxy();
setbkcolor(9);
line(x/2,0,x/2,y);
line(0,y/2,x,y/2);
outtextxy(x-20,y/2-10,"X");
outtextxy(x/2+10,10,"Y");
outtextxy(x/2-10,y/2+10,"O");
circle(x/2+20*cmp[0].a,y/2-20*cmp[0].b,2);
setcolor(GREEN);
line(x/2+20*cmp[0].a,y/2-20*cmp[0].b,x/2,y/2);
switch (ch2)
{
case 1: cmp[1].a=0;
cmp[1].b=1;
c_mul();
break;
case 2: cmp[1].a=0;
cmp[1].b=-1;
c_mul();
break;
}
setcolor(WHITE);
circle(x/2+20*cpro.a,y/2-20*cpro.b,2);
line(x/2+20*cpro.a,y/2-20*cpro.b,x/2,y/2);
getch();
break;
}
break;
}
getch();
}
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