User manual CITIZEN SRP-145T

[. . . ] SRP-145T Scientific Calculator BASIC DEFINITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 The Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 General Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Memory Keys. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] PGM disappears and the calculator exits the program mode. [RUN] - Compute Key Runs the recorded program. [SHIFT] [[x]] - Specify Variable Key Lets you have the calculator wait for an entry during a program. [SHIFT] [HALT] - Temporarily Halt Calculation Key Temporarily halts a program so you can view the intermediate results or interrupt calculations. -E5- Statistical Keys (Use in the SD mode only) [SHIFT] [SD] Statistical Mode Select Key Sets the calculator to the statistical calculation mode. [SHIFT] [CAD] Statistical Register Clear Key Clears the statistical calculation registers. [DATA], [DEL] Data Entry and Delete Key In the SD mode, enter data by pressing the desired numbers, then [DATA]. If you enter incorrect data and do not notice your mistake until you press [DATA], enter the same incorrect data and then press [DEL] to delete that incorrect data. [ x ] Arithmetic Mean Key Calculates the arithmetic mean ( x ) of the data. [SHIFT] [n] Population Standard Deviation Key Calculates the population standard deviation (n) of the data. [n­1] Sample Standard Deviation Key Calculates the sample standard deviation (n­1) of the data. [SHIFT] [x2] Sum of Square Value Key Calculates the sum of the square value (x2) of the data. [SHIFT] [x] Sum of Values Key Calculates the sum of the value (x) of the data. [n] Number of Data Key Displays the number of data (n) entries. The Display The display shows entered numbers, interim results, and calculation results. Floating point displays up to 10 digits. The mantissa section displays up to 8 digits. The exponent section displays up to ±99. M : Indicates that a value is stored in memory. : Appears to the left of the mantissa or exponent to indicate that the respective value is negative. GRAD : Indicates that gradient units have been selected. RAD : Indicates that radian units have been selected. DEG : Indicates that degree units have been selected. [. . . ] To stop storing a program, press [SHIFT] [PGM] again. PGM disappears and the calculator leaves the program mode. Press [RUN] to begin repeating the same mathematical procedure with different variables. When you press [RUN], you can begin entering different variables. [. . . ]