## Contents

- Overview
- Interface
- Adding 3D graphs
- Adding parametric 3D graphs (extended version only)
- Adding parametric surface 3D graphs (extended version only)

## Overview

The 3D Graph window allows one to draw tridimensional graphs of functions.

## Interface

Graph 3D window exposes following functionality:

## Adding 3D graphs

The 3D graph is a graph of function in the following form:

To add a 2D graph, use the Add 2D graph command. The following dialog window will appear.

You may enter the graph expression into the expression textbox. Note, that the names *x* and *z* are reserved as parameters of the graph function, thus you cannot access variables named *x* or *z* (if you have defined such ones).

The dialog window allows you to choose the graph’s resolution as well as color. The resolution values regulates the density of data points in both dimensions. Setting both the resolutions to 100 makes a graph with points. The density of graph is restricted only by the memory of your graphics card. If there is not enough memory, the chart may appear partially or not at all. In that case, try decreasing the resolution of the chart or remove some charts from the view.

## Adding parametric 3D graphs (extended version only)

The parametric 3D graph is a graph of function in the following form:

To add a parametric 3D graph, use the Add parametric 3D graph command. The following dialog window will appear.

To enter the parametric graph expressions, use the appropriate textboxes. Similarly to the parametric 2D graph, you may specify the density of data points on the chart. The more you set, the more smooth the chart will be, but also more graphics card memory will be required to store the graph. A value of 100-500 should fit for most of the graphs.

## Adding parametric surface 3D graphs (extended version only)

The parametric surface 3D graph is a graph of function in the following form:

To add a parametric surface 3D graph, use the Add parametric surface 3D graph command. The following dialog window will appear.

Use the appropriate textboxes to enter the function expressions. The variable names *u* and *v* are reserved for the function parameters, thus you cannot access the values of variables *u* and *v* (if you have defined such ones).

The range and data point density of both parameters may be adjusted. The similar restrictions, as in regular 3D graph applies to the parametric surface graph.

Return to the main manual page