## quadraticAn expression or an equation that contains the variable squared, but not raised to any higher power. For instance a quadratic equation
in x contains x^{2} but not x^{3}.
Similarly a quadratic expression, or a quadratic
form, contains its variable(s) squared but not raised to any higher
power. If there is more than one variable (say, x and y),
quadratic can mean that they are multiplied together in pairs (xy)
but not in threes (such as x^{2}y). The graph of a
quadratic equation is known as a quadratic curve; the curve
of the general quadratic equation y = ax^{2} + bx
+ c is a parabola.## Related category• ALGEBRA | |||||

Home • About • Copyright © The Worlds of David Darling • Encyclopedia of Alternative Energy • Contact |