July 17, 2021, Learn eTutorial

1017

For a better understanding, we always recommend you to learn the basic topics of C programming listed below:

Here in this c program, we need to calculate the quadrant of a point, which means we have to find out where quadrant a point is coming from.

There are mainly four Quadrants.

- First Quadrant: Here, both the points '
**x**' and '**y**' take the Positive value. That is '**x>0**' and '**y>0**'. - Second Quadrant: Here, the value of '
**x**' is Positive, and '**y**' is Negative. That is**'x>0**' and '**y<0**'. - Third Quadrant: Here, both the points '
**x**' and '**y**' take the Negative value. That is '**x<0**' and '**y<0**'. - Fourth Quadrant: Here, the point '
**x**' is Positive, and '**y**' takes the Negative value. That is '**x>0**' and '**y<0**'. - Origin: Here the value of both '
**x**' and '**y**' is Zero.That is '**x=0**',**'y=0**'.

There are four quadrants, namely the first, second, third, and fourth quadrants. The logic of the program is first to declare the variables '**x**' and '**y**' then read the values for **'x**' and '**y**' from the user. By using the `if-else`

statement check, we have to check `if`

'**x**' and '**y**' are greater than zero. If so, the point is in the first quadrant. If check '**x**' is less than zero and '**y**' is greater than zero, then the point is in the second quadrant. `Else if`

'**x**' greater than zero and '**y**' is less than zero, then it is the fourth quadrant. `Else if`

**'x**' and 'y' less than zero, then it is in the third quadrant. Finally, `if`

'**x**' and '**y**' equal zero, then the point is in origin.

**STEP 1:** Include the header files to use the built-in functions in the C program.

**STEP 2:** Declare the integer variable **x, y**.

**STEP 3:** Read the values of **X** and **Y** into the variable **x, y**.

**STEP 4:** Check if** x>0** and **y>0**; if the condition is true, then Display** x** and y lies the First Quadrant.

**STEP 5:** Else check if **x<0** and **y>0**, if the condition is true, then display **x** and y lies in the Second Quadrant.

**STEP 6:** Else check if **x>0** and **y<0**; if the condition is true, then display **x** and y lies in the Third Quadrant.

**STEP 7:** Check if **x>0** and **y<0**; if the condition is true, then display **x** and **y** lies the Fourth Quadrant.

**STEP 8:** Check if** x=0 **and** y=0**, if the condition is true, then display** x** and **y** lies at the origin.

` ````
#include <stdio.h>
void main()
{
int x, y;
printf("Enter the values for X and Y\n");
scanf("%d %d", & x, & y);
if (x > 0 && y > 0)
printf("point (%d,%d) lies in the First quadrant\n",x,y);
else if (x < 0 && y > 0)
printf("point (%d,%d) lies in the Second quadrant\n",x,y);
else if (x < 0 && y < 0)
printf("point (%d, %d) lies in the Third quadrant\n",x,y);
else if (x > 0 && y < 0)
printf("point (%d,%d) lies in the Fourth quadrant\n",x,y);
else if (x == 0 && y == 0)
printf("point (%d,%d) lies at the origin\n",x,y);
} /* End of main() */ /* End of main() */
```

RUN 1 Enter the values for X and Y 3 5 point (5,3) lies in the First quadrant RUN 2 Enter the values for X and Y -4 -7 point (-7, -4) lies in the Third quadrant