newton raphson

[deadly2011]

I cannot get the newton raphson option once I right-click my graph on v 3.3. any ideas?

[Simon]

Dear deadly2011,

Either:

Select a y = f(x) graph, and use the right-click option Newton-Raphson Iteration to open a dialogue box which controls the iterations. The initial value x₀ is entered. Use the Up and Down arrow keys to change the iterations.

Or:

Select a point on a y = f(x) graph. Create iterations as above. You can then move the point about to vary the iteration.
To select an iteration click on any of its elements. To reedit an iteration double-click on any of its elements.

The algorithm used is x₂ = x₁ − f(x₁/f \'(x₁.

I hope that helps,

Simon