Texas Instruments TI-73VSC Guidebook - Page 26

20 Chapter 1: Operating the TIN73 Storing Values to a Variable X You can store values or expressions that result in one value or lists to a one-letter variable or a system variable (types are listed below) to save for later use. Also, you can save a result for later use by storing Ans to a variable before you evaluate another expression. When an expression containing the name of a variable is evaluated, the value of the variable at that time is used. You can enter and use several types of data for variables, including real numbers, lists, functions, statistical plots, and graph pictures. Variable names cannot be the same as a name that is preassigned by the TIN73. These include built-in functions such as abs( , instructions such as Line( , and system variables such as Xmin. Variable Type Real Numbers Lists—Numerical and Categorical Functions Stat Plots Graph Pictures System Variables Names A, B, …, Z (- t) L1, L2, L3, L4, L5, L6, and any user-defined list names (- v Ls) Y1, Y2, Y3, Y4 (- } 2:Y-Vars) Plot1, Plot2, Plot3 (- e from the Program editor) Pic1, Pic2, Pic3 (- } 4:Picture) Xmin, Xmax, … (- } 1:Window) Store a value to either a system variable or a letter variable from the Home screen or a program using the X key. Begin on a blank line and follow these steps.