This works through iterations of the Newton-Raphson method. [br][br]Use the slider to set your first estimate for [math]x_0[/math]. Then by selecting the tick boxes for [math]x_1[/math], [math]x_2[/math] and [math]x_3[/math], each iteration of the Newton-Raphson method will be shown. [br][br]You can enter any function into the textbox.