Bisection Method
The bisection method finds a root of f(x).
0. Enter a function f(x). For example, x*sin(x^2)
1. Bracket the root in the interval [a,b]. (Either move points A and B, or input values for a and b so that f(a)*f(b) < 0.
2. Click "Step" button to find the next bracket.
At any time, you may click "Zoom" for a better view of the current bracket.
"Reset" sets the bracket to [1,2]