1 One boy was solving a quadratic equation, another was engaged with Euclid.

2 The branch of algebra that deals with quadratic equation.

3 The quadratic equation defines a parabola.

4 And he inherited al - Khwarizmi's solution to quadratic equation.

5 The child then knows how to solve a quadratic equation.

6 Usually, x is a quadratic equation ,[] x has two different solutions.

7 The conclusion shows that the optimal strategy of predator is the quadratic equation of time and the profit is the descending function of temporary impact coefficient.

8 In this paper, an accurate equation to the arc of contact in rolling is established and transformed into explicit function by using the root of quadratic equation.

9 Least square regression method was used for MTF curve (at logarithmic axis) fitting with quadratic equation so as or cubic equation to obtain the desired parameters.

10 Theoretically speaking, it is a rather-clearly discussed subject to standardize the quadratic equation into the normal forms by spinning the coordinate axis so as to approach the shapes of its curves.