Draw the flow chart to find roots of a quadratic equation.

#### Solution

Ans.

Algorithm :-

Step I : Start.

Step II : Input a,b,c,del,r1,r2.

Step III : Print “Enter the value of coefficient of the X^2.”

Step IV : Read a.

Step V : Print “Enter the value of coefficient of the X.”

Step VI : Read b.

Step VII : Print “Enter the value of constant C.”

Step VIII : Read c.

Step IX : del = b X b – 4 X a X c

Step X : If del is less than zero Then,

r1 = ( -b / ( 2 X a ) ) + sqrt ( del ) / 2 X a

r2 = ( -b / ( 2 X a ) ) - sqrt ( del ) / 2 X a

Print “Roots are complex and unequal.”

Print “The roots for the entered values are r1 and r2.”

Else - if del is greater than zero Then,

r1 = ( -b / ( 2 X a ) ) + sqrt ( del ) / 2 X a

r2 = ( -b / ( 2 X a ) ) - sqrt ( del ) / 2 X a

Print “Roots are real and unequal.”

Print “The roots for the entered values are r1 and r2.”

Else,

r1 = ( -b / ( 2 X a ) ) + sqrt ( del ) / 2 X a

Print “Roots are real and equal.”

Print “The root for the entered values is r1.”