Quadratic Equations - By Elaine Pitcher
How to use this applet:The user writes a, b and c values into the textfields. They then press the "calculate roots" button and the roots are given.
If they then press the "try again" button, they are given a chance to do it again.Notes on the maths used in the applet:The roots of a quadratic equation (x1, x2), can be plotted on a graph. Negative quadratic equations (i.e -ax2 +bx +c = 0) gives a concave up curve and a positive equation gives a concave down curve.
The applet uses the formula for calcualting roots to get the x values and prints these on the screen.
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