Calculator that allows the calculation of the discriminant of a quadratic equation online.

discriminant online

The **discriminant** of the quadratic equation following `ax^2+bx+c=0` is equal to `b^2-4ac`.
The notation used for the discriminant is `Delta` (delta), so we have `Delta=b^2-4ac`.

The calculator has a feature which allows the **calculation of the discriminant** **online** of quadratic equations.
To **calculate the discriminant** of the equation : `3x^2+4x+3=0`, enter
discriminant(`3*x^2+4*x+3=0;x`),
the calculator returns the result -20.

Calculate the discriminant of a polynomial allows to determine the number of root of quadratic equation :

- When the
**calculation of the discriminant**gives a negative number, the equation has no root - when the
**discriminant**is zero, the equation has a root, double root - when the
**calculation of the discriminant**is a positive number, the equation has two distinct roots.

To find les the roots of an equation, it is possible to use the equation solver.

Calculator that allows the calculation of the discriminant of a quadratic equation online.

To calculate the discriminant of the quadratic equation `x^2+x+1`, just enter: discriminant(`x^2+x+1;x`) which returns -3.

Calculate online with discriminant (calculation of the discriminant online)
See also

- Degree of a polynomial : degree. The degree function calculates online the degree of a polynomial.
- Calculation of the discriminant online : discriminant. Calculator that allows the calculation of the discriminant of a quadratic equation online.
- Solve for x calculator : equation_solver. The equation solver allows to solve equations with an unknown with calculation steps : linear equation, quadratic equation, logarithmic equation, differential equation.
- Quotient and remainder calculator : euclidean_division. The calculator allows to find online the quotient and the remainder in the euclidean division of two polynomials or two integers.
- Pythagorean theorem calculator : pythagorean. The calculator uses the Pythagorean theorem to verify that a triangle is right-angled or to find the length of one side of a right-angled triangle.
- Valuation of a polynomial : valuation. The valuation function allows to calculate the valuation of a polynomial online.

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