Texas Instruments 83CML/ILI/U Guidebook - Page 33
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Entering a Number in Scientific Notation To enter a number in scientific notation, follow these steps. 1. Enter the part of the number that precedes the exponent. This value can be an expression. 2. Press y [EE]. å is pasted to the cursor location. 3. If the exponent is negative, press Ì, and then enter the exponent, which can be one or two digits. Functions Instructions Interrupting a Calculation When you enter a number in scientific notation, the TI.83 does not automatically display answers in scientific or engineering notation. The mode settings (page 1.9) and the size of the number determine the display format. A function returns a value. For example, ÷, L, +, ‡(, and log( are the functions in the example on page 1.6. In general, the first letter of each function is lowercase on the TI.83. Most functions take at least one argument, as indicated by an open parenthesis ( ( ) following the name. For example, sin( requires one argument, sin(value). An instruction initiates an action. For example, ClrDraw is an instruction that clears any drawn elements from a graph. Instructions cannot be used in expressions. In general, the first letter of each instruction name is uppercase. Some instructions take more than one argument, as indicated by an open parenthesis ( ( ) at the end of the name. For example, Circle( requires three arguments, Circle(X,Y,radius). To interrupt a calculation or graph in progress, which would be indicated by the busy indicator, press É. When you interrupt a calculation, the menu is displayed. • To return to the home screen, select 1:Quit. • To go to the location of the interruption, select 2:Goto. When you interrupt a graph, a partial graph is displayed. • To return to the home screen, press ' or any nongraphing key. • To restart graphing, press a graphing key or select a graphing instruction. Operating the TI-83 1-7
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