## Root Finder: Compute Zeros of Real-Valued Functions

Type a new function and study it's zero crossings. Look at the info panel to view the numerical values of the roots. To get the info Panel press F1 or Ctrl-i.

### Controls in the Project Panel:

Function expression text field | In the text field you can use the mathematical functions described in Expressions.html to type a new function, the zero crossings of which you wont to be found. |

Slider "xMin" | Lower bound of definition interval for the function. |

Slider "xMax" | Upper bound of definition interval for the function. |

Slider "Discr of Polygon" | Number of equidistant x-values in the definition interval. For these x-values the function will be evaluated to find starting values for the searching algorithm. |

View source code (for details go to JavaView
tutorial):

PaRootFinder.java
of applet,

PjRootFinder.java
of project,

PjRootFinder_IP.java of info panel.