Tuesday, 10 October 2017

Practical-5

PRACTICAL- 5
Aim of the practical:-
Write a program (WAP) to enter the value of Coefficient of x2 (a), Coefficient of x (b) and constant term (c), and  find the roots of a quadratic equation ax2+bx+c=0
Header files used:-
#include <iostream.h>
#include <stdlib.h>
#include <math.h>
Conditional statements/Loops used:-
i.                   If– else –if ladder
Procedures followed:-
The coefficient of x2, x, and constant term of the quadratic equation ax2 + bx + c = 0 is entered by the user. Then we find the discriminant by applying the formula D=b2 - 4ac.
Then this discriminant is compared with 0 in an if- else- if ladder and the roots are found as per the rules given below.
i.                  D>0, Roots are real and distinct.
ii.                D=0, Roots are real and equal.
iii.              D<0, Roots are imaginary.

Coding:-


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