User manual TEXAS INSTRUMENTS TI-30XB

[. . . ] 2nd Functions: % displays the 2nd indicator, and then selects the 2nd function (printed above keys) of the next key pressed. For example, % b 25 E < calculates the square root of 25 and returns the result, 5. To return to the previous screen without selecting the item, press -. to select a menu item: Press < while the item is underlined , or ? [. . . ] Enter any combination of numbers, operators, and/or values, up to 44 characters, beginning with an operator. Each subsequent time you press <, the TI-30X recalls the stored operation and applies it to the last answer or the current entry. Press % l again to turn Constant mode off. The TI-30X has 5 memory variables--A, B, C, D, and E. You can store a real number or an expression that results in a real number to a memory variable. These modes affect only the display of results. These modes affect only the display of results. FLO (default): Floating Notation, with digits to the left and right of the decimal SCI: Scientific Notation ENG: Engineering Notation (exponent is a multiple of 3) 1-VAR analyzes statistical data from 1 data set with 1 measured variable, x. 2-VAR stats analyzes paired data from 2 data sets with 2 measured variables--x, the independent variable, and y, the dependent variable. In 1-VAR stat mode, enter the frequency of occurrence (FRQ) of the data point. In 2-VAR stat mode, enter the value for Y1 and press <. Repeat steps 3 and 4 until all data points are entered. You must press < or $ to save the last data point or FRQ value entered. If you add or delete data points, the TI-30X automatically reorders the list. When all points and frequencies are entered: Press u to display the menu of variables (see table for definitions) and their current values, or ?Press v to return to the blank STAT screen. You can do calculations with data variables (, , etc. Select a variable from the u menu and then press < to evaluate the calculation. When finished: Press % t and select CLRDATA to clear all data points without exiting STAT mode, or ?Press % w < to clear all data points, variable and FRQ values, and to exit STAT mode (STAT indicator turns off). Calculates the number of possible permutations of n items taken r at a time, given n and r. the order of objects is important , as in a race. [. . . ] Some states/provinces do not allow the exclusion or limitation of implied warranties or consequential damages, so the above limitations or exclusions may not apply to you. This warranty gives you specific legal rights, and you may also have other rights that vary from state to state or province to province. During the above one (1) year warranty period, your defective product will be either repaired or replaced with a reconditioned model of an equivalent quality (at TI's option) when the product is returned, postage prepaid, to Texas Instruments Service Facility. The warranty of the repaired or replacement unit will continue for the warranty of the original unit or six (6) months, whichever is longer. [. . . ]