C++ Programming : Program 29-a
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C++ Programming : Program 29-A Program to find the roots of a quadratic equation Click here for C++ PROGRAM Click here for C++ PROGRAM
#include #include #include <math.h> int main() { clrscr(); float a,b,c,d,root1,root2; cout << "Enter the 3 coefficients a, b, c : " << endl; cin>>a>>b>>c; if(!a){ if(!b) cout << "Both a and b cannot be 0 in ax^2 + bx + c = 0" << "\n"; else { d=-c/b; cout << "The solution of the linear equation is : " << d << endl; } } else { d=b*b-4*a*c; if(d>0) root1=(-b+sqrt(d))/(2*a); root2=(-b-sqrt(d))/(2*a); cout << "The first root = " << root1 << endl; cout << "The second root = " << root2 << endl; } getch(); return 0; }
This program takes in the values of the three coefficients a, b, and c as a screen input from the user. It then determines the roots of the quadratic equation using the formula ax^2 + bx + c = 0. The two roots are then outputted using the 'cout' command. Click here for SAMPLE INPUT Click here for SAMPLE INPUT 4 4 -3
Click here for SAMPLE OUTPUT Click here for SAMPLE OUTPUT The first root = 0.5 The second root = -1.5
#include
This program takes in the values of the three coefficients a, b, and c as a screen input from the user. It then determines the roots of the quadratic equation using the formula ax^2 + bx + c = 0. The two roots are then outputted using the 'cout' command. Click here for SAMPLE INPUT Click here for SAMPLE INPUT 4 4 -3
Click here for SAMPLE OUTPUT Click here for SAMPLE OUTPUT The first root = 0.5 The second root = -1.5
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