Description:
In this program
the complex number means it contains the two parts . first one is real part and
second one is imaginary part(2+3i).by taking these two complex numbers we can
perform the addition and multiplication operation.
Algorithm:
Step 1: Start
Step 2: declare structure for complex
numbers
Step 3: read the complex number
Step 4: read choice
Step 5: if choice=1 then addition
operation will perform and it contains following
steps
i)
w.realpart = w1.realpart+w2.realpart;
ii)
w.imgpart = w1.imgpart+w2.imgpart; goto step 4
Step 6: if choice=2 then
multiplication operation will perform and it contains
following steps
i)
w.realpart=(w1.realpart*w2.realpart)-(w1.imgpart*w2.imgpart);
ii) w.imgpart=(w1.realpart*w2.imgpart)+(w1.imgpart*w2.realpart);
goto step 4
Step 7: if choice=0 then exit
operation will perform
Step 8:if w.imgpart>0 then print
realpart+imgpart else
Print realpart.
Step 9: Stop
#include<stdio.h>
#include<math.h>
void arithmetic(int opern);
struct comp
{
double realpart;
double imgpart;
};
void main()
{
int opern;
clrscr();
printf("\n\n
\t\t\t***** MAIN MENU *****");
printf("\n\n
Select your option: \n 1 : ADD\n 2 : MULTIPLY\n 0 : EXIT \n\n\t\t Enter your
Option [ ]\b\b");
scanf("%d",&opern);
if(opern>2)
{
printf("invalid
option");
}
else
{
switch(opern)
{
case 0:
exit(0);
case 1:
case 2:
arithmetic(opern);
default:
main();
}
}
getch();
}
void arithmetic(int opern)
{
struct comp w1, w2,
w;
printf("\n Enter
two Complex Numbers (x+iy):\n Real Part
of First Number:");
scanf("%lf",&w1.realpart);
printf("\n
Imaginary Part of First Number:");
scanf("%lf",&w1.imgpart);
printf("\n Real
Part of Second Number:");
scanf("%lf",&w2.realpart);
printf("\n
Imaginary Part of Second Number:");
scanf("%lf",&w2.imgpart);
switch(opern)
{
/*addition of complex number*/
case 1:
w.realpart = w1.realpart+w2.realpart;
w.imgpart = w1.imgpart+w2.imgpart;
break;
/*multiplication of complex number*/
case 2:
w.realpart=(w1.realpart*w2.realpart)-(w1.imgpart*w2.imgpart);
w.imgpart=(w1.realpart*w2.imgpart)+(w1.imgpart*w2.realpart);
break;
}
if (w.imgpart>0)
printf("\n Answer =
%lf+%lfi",w.realpart,w.imgpart);
else
printf("\n Answer =
%lf%lfi",w.realpart,w.imgpart);
getch();
main();
}
Output:
***** MAIN MENU *****
Select your option:
1 : ADD
2 : MULTIPLY
0 : EXIT
Enter
your Option [ 1]
Enter two Complex
Numbers (x+iy):
Real Part of First
Number:2
Imaginary Part of
First Number:2
Real Part of Second
Number:2
Imaginary Part of
Second Number:2
Answer =
4.000000+4.000000i
***** MAIN MENU *****
Select your option:
1 : ADD
2 : MULTIPLY
0 : EXIT
Enter
your Option [ 2]
Enter two Complex
Numbers (x+iy):
Real Part of First
Number:2
Imaginary Part of
First Number:2
Real Part of Second
Number:2
Imaginary Part of
Second Number:2
Answer =
0.000000+8.000000i
***** MAIN MENU *****
Select your option:
1 : ADD
2 : MULTIPLY
0 : EXIT
Enter
your Option [ 3]
invalid option
***** MAIN MENU *****
Select your option:
1 : ADD
2 : MULTIPLY
0 : EXIT
Enter
your Option [ 0]
Conclusion: The
program is error free
VIVA QUESATIONS:
1) Define structure ?
Ans: Structure is amethod for packing data of different
types. Structure help to organize complex data in a more meaninigful way.
2) What is use of <math.h> header file ?
Ans: It is used to access the mathematical functions in
programs.
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