Quadratic Equation Solver Online [Calculator]
Enter Values of Coefficients (ax 2 + bx + c = 0) First Root Value: Second Root Value: The formula to solve a quadratic equation is -b + √(b 2 - 4ac) r = ______________ 2a Note: We will add the support for complex roots soon. The term b 2 - 4ac is called as discriminant and is of very importance. Depending on the value of discriminant we can tell the nature of the roots of the quadratic equation where a, b and c are the rational numbers. If value of discriminant (d) is Zero (0) - the equation has real root greater than zero (d > 0) - the equation has real and distinct roots less than zero (d < 0) - the equation has imaginary roots The discriminant is useful if we want to know the nature of the roots instead of actually calculating them. If you want C programming language code to find roots of quadratic equation check out this article at C program to find roots of a quadratic equation .
