User manual TEXAS INSTRUMENTS TI-92 PLUS-VOYAGE 200 CABRI GEOMETRY GUIDEBOOK

[. . . ] ti TI-89 / TI-92 Plus / VoyageTM 200 Cabri Geometry Important Information Where to Find Installation Instructions How to contact Support and Service End-User License Agreement Cabri Geometry Application User Guide Copyright © 1999­2002 Texas Instruments Incorporated Important Information Texas Instruments makes no warranty, either expressed or implied, including but not limited to any implied warranties of merchantability and fitness for a particular purpose, regarding any programs or book materials and makes such materials available solely on an "as-is" basis. In no event shall Texas Instruments be liable to anyone for special, collateral, incidental, or consequential damages in connection with or arising out of the purchase or use of these materials, and the sole and exclusive liability of Texas Instruments, regardless of the form of action, shall not exceed the purchase price of this product. Moreover, Texas Instruments shall not be liable for any claim of any kind whatsoever against the use of these materials by any other party. This graphing product application (APP) is licensed. [. . . ] A point at a proportional distance from another point. A point on a circle that is at an equivalent arc length from another point on the circle. The point created by the measurement transfer is dynamically updated. The magnitude of the measurement that is transferred defaults to the specified unit of length. Note: See "Measuring Distance and Length of an Object" on page 46 and "Creating and Editing Numerical Values" on page 61 to create the numerical values shown in the examples in this section. Creating a Measurement Transfer Point on a Ray Perform the following steps to transfer the measurement of a segment to a ray. Construct and measure a segment, and construct a ray as shown in this example. Press and select 9:Measurement Transfer. 3. Point to any measurement or numerical value, and press ¸ to select the value. Select a numerical value. Note: If you select a point, a dotted line appears. Position the dotted line as you want it, and then press ¸ to set the position. 4. Select a ray, vector, polygon, point, or axis; and press ¸ to transfer the measurement to the object. A point is created that is an equivalent distance from the endpoint of the ray. Select a ray. Transfer the measurement. TI-89 / TI-92 Plus / VoyageTM 200 PLT Cabri Geometry App 33 Transferring Measurements (continued) Creating a Measurement Transfer Point on a Circle Perform the following steps to create a point on a circle at a proportional arc length away from a selected point. Create a circle with a point on it, then create a numerical value as shown in this example. 2. Press and select 9:Measurement Transfer. 3. Move the cursor and press ¸ to select the numerical value. 4. Move the cursor and press ¸ to select the circle Note: The direction of the distance or arc length is counterclockwise for positive values and clockwise for negative values. The direction is determined by the sign of the selected numerical value. 5. Move the cursor to the existing point on the circle. 6. Press ¸ to create a point on the circle that is a proportional arc length away from the initial point. TI-89 / TI-92 Plus / VoyageTM 200 PLT Cabri Geometry App 34 Creating a Locus The Construction toolbar menu contains the Locus tool, which generates a set of points while a point moves along a path. Creating a Locus The Locus tool creates a set of objects defined by the movement of a point along a path. A path is any defined object on which a point can be placed. The center point and circumference of the small circle must be attached to the circumference of the large circle. This point indicates that the circles are attached. Construct and attach two circles. Note: The number of points calculated in the construction of the locus is defined in the Geometry Format dialog box. 2. Press and select A:Locus. Note: The locus is dynamically recalculated when you modify the objects that define the locus. 3. Select the small circle as the object for which to construct the locus. Select the object. 4. [. . . ] To return to the Pointer tool from anywhere. To increase or decrease the displayed precision of selected numerical values. To increase or decrease the number of objects in a selected locus. To increase or decrease the animation speed. [. . . ]