- To
**graph***two or more*expressions on the same**Cartesian**or**polar****coordinate system**press » to display the**multi-graph pane**. The multi-graph pane consists of*expression panels*, which can be added or deleted as desired by pressing**+**or**×**on each panel, respectively. Selecting or deselecting the checkbox for any expression displays or hides the corresponding graph. - For convenience, the graphing software appends a suitable interval, either dom = (-∞, ∞) or dom = (0, 2π) to the function or parametric expressions. The software then graphs the expressions on that specified domain.
**You can change the end points of the interval**if desired. However, the end points must be finite for polar or parametric graphing. The graphing software will automatically change any infinities to finite values. - The points
**(a**are entered as_{1}, b_{1}), (a_{2}, b_{2}), ...**a**That is, separate the coordinates by a_{1}, b_{1}; a_{2}, b_{2}; ...*comma*and the points by a*semicolon*. The last semicolon is optional, see the note below. You can use**numeric expressions**such as**1/2+sin(π/3)**for point coordinates.- To
**Connect**the points in the*focused*expression box with line segments, press the**Connect**toggle button. You can then press it again to disconnect the points. Note: If the last point ends with a semicolon, it will be connected to the first point to form a closed polygon.

- To
- You can
**Animate**the**polar graph**of a*function*or**parametric curves**(in both Cartesian and polar coordinate systems) to watch how it is constructed.- This tremendously useful feature can be accessed by pressing the ► button at the bottom of the graphing software (if it is hidden, first press the Animate button).
- This will start the animation of the
**polar graphing process**of the**function**or**parametric graphing process**of the**parametric expression***in focus*. The graph is drawn*progressively*from the initial value to the final value on the specified domain. - You can
*pause*the animation by pressing**‖**or*stop*it by pressing**Done**. This will also close the animation interface. To display it again, press the**Animate**button at the top of the grapher. - The
**speed of the graphing animation**can be changed by using the**slider**provided.

- The
**Graph Fineness**drop-down list controls the**accuracy**of the graphs drawn by the graphing software.**Higher**fineness settings produce**more accurate**graphs, but they also**take longer**to draw. The**default**fineness setting is**"Normal"**, which is usually sufficient for most purposes. However, if you need to see**more detail**in the graphs, you can select a**higher**fineness setting.**Higher**fineness settings can be useful for graphing functions that have**sharp curves**or**cusps**.**Note**: The graph fineness can also affect the**speed**of the**animation**of the graphing process.**In general**,**higher**fineness settings will result in**slower**animations. - This
**graphing software**can also graph in**non-perpendicular**Cartesian coordinate systems, where the axes can be rotated to any angle. To do this, enter the amount of angle by which you want to rotate each axis in**degrees**, and then press the**Apply**button. The software will then rotate the axes and graph the expression as specified. - You can also
**label an axis**with any number, mathematical constant, or numeric expression, such as π, π/2, 1+√2. - To copy or save graphs, first press the
**Copy/Save graph**button. An image of the graph will appear below the graphing software. You can then use your browser's capabilities to**save**the image or**copy**it to your documents. - To
**evaluate**a function or parametric expression, type a**number**or a**numeric (constant) expression**in the box provided. The calculator will display the calculated values with the number of decimal places specified by using the slider provided. - The graphing calculator can be used as an
**equation solver**to find the**x-intercepts**(also known as**zeros**or**roots**) of a function. To do this,**enter a function f(x)**and press the**Solve**button. The calculator will then solve the equation**f(x) = 0**and display the x-intercepts on the screen. - In addition, the graphing calculator can be used as a
**derivative calculator**. To calculate the first and second order**derivatives**of functions and parametric equations, press the**Derivative**button. You can then graph the derivatives.