Write C code that does the following: 1 . Interactively read the three coefficie

Question

Write C code that does the following:1. Interactively read the three coefficients of a quadratic equation and compute the two roots. The program must alert if there is no real root, i.e. read a, b, c of

and compute

(b ±    b^2 4ac)/2a

Note: sqrt is available in math.h. You need to compile the program with "-lm" option, i.e.

Make sure that you add a routine to check the positiveness of the discriminant using the if statement. Show actual runs and examples.2. Interactively read temperature in Celsius and convert it to Fahrenheit. Note

Example:

Explanation / Answer

#include <stdio.h>

int main(void) {

// your code goes here

float c,f;

printf("enter Temperature in C:");

scanf("%f",&c);

f=c*1.8+32;

printf(" It is %f degree in Fahreheit",f);

return 0;

}

Output:

enter Temperature in C:29

It is 84.199997 degree in Fahreheit

1)

#include <stdio.h>
#include <math.h>

int main()
{
double a, b, c, determinant, root1,root2, realPart, imaginaryPart;

printf("Enter coefficients a, b and c: ");
scanf("%lf %lf %lf",&a, &b, &c);

determinant = b*b-4*a*c;

// condition for real and different roots
if (determinant > 0)
{
// sqrt() function returns square root
root1 = (-b+sqrt(determinant))/(2*a);
root2 = (-b-sqrt(determinant))/(2*a);

printf("root1 = %.2lf and root2 = %.2lf",root1 , root2);
}

//condition for real and equal roots
else if (determinant == 0)
{
root1 = root2 = -b/(2*a);

printf("root1 = root2 = %.2lf;", root1);
}

// if roots are not real
else
{
printf("Roots are imaginary");
}

return 0;
}

Output:

Enter coefficients a, b and c: 1 5 6

root1 = -2.00 and root2 = -3.00

Enter Coefficient a,b and c :2 4 8

Roots are Imaginery

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.