Texas Instruments TI-89 User Manual - Page 781
Appendix A, Functions and Instructions
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A Appendix A: Functions and Instructions Categorical Listing of Operations 782 Alphabetical Listing of Operations 786 This section describes the syntax and action of each TI-89 Titanium function and instruction that is included in the operating system (OS). See modules relating to calculator software applications (Apps) for functions and instructions specific to those Apps. Name of the function or instruction. Key or menu for entering the name. You can also type the name. Example Circle CATALOG Circle x, y, r [, drawMode] Draws a circle with its center at window coordinates (x, y) and with a radius of r. x, y, and r must be real values. If drawMode = 1, draws the circle (default). If drawMode = 0, turns off the circle. If drawMode = -1, inverts pixels along the circle. Note: Regraphing erases all drawn items. Arguments are shown in italics. Arguments in [ ] brackets are optional. Do not type the brackets. In a ZoomSqr viewing window: ZoomSqr:Circle 1,2,3 ¸ Explanation of the function or instruction. Syntax line shows the order and the type of arguments that you supply. Be sure to separate multiple arguments with a comma (,). Appendix A: Functions and Instructions 781