User manual CITIZEN SRP-145TII COMMAND LINE INTERFACE REFERENCE MANUAL

[. . . ] SRP-145T Scientific Calculator BASIC DEFINITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 The Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 General Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Memory Keys. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] [SHIFT] [x!] Factorial Key To find the factorial of the displayed value, press [SHIFT] [x!]. = 4 x 3 x 2 x 1 = 24 [Xy] Power Key Press any number [X], [Xy], any number [y], and [=] to raise X to the y power. Example: 5 [Xy] 4 [=] 625 [SHIFT] [ y x ] Root Key y Press any number [x] [SHIFT] [ display the y root x. Example: 625 [SHIFT] [ y x ], any number [y], and [=] to x ] 4 [=] 5 Programming Keys (Use in the PGM mode only) [SHIFT] [PGM] - Program Mode Set and Clear Key. PGM appears on the display and the previous contents of program memory is cleared. [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. : Appears to the left of the mantissa or exponent to indicate that the respective value is negative. ( | ) : Appears when you press [SHIFT] [[x]] in the program learn mode and when program execution halts to let you enter a variable. The number in brackets shows the number of the place of the variable, and goes from 1 - 40. OVERFLOW OR ERROR CHECK An overflow or error is indicated by "E". An overflow or error occurs when: a) An intermediate or final calculation result exceeds 1 x 10100 (including memory calculations). c) The number of low priority storage levels exceeds 6 in a parentheses calculation or nesting parentheses exceed 7 in one level. [. . . ] · Press [SHIFT] [CAD] to clear statistical memory before you start a new calculation. Example: Find n, x2, x, x, n­1, and n based on the data: 2, 2, 2, 3, 4, 4, 7, 8, 9 Press Display Comment [SHIFT] [SD] [SHIFT] [CAD] [2] [x] [3] [DATA] [3] [DATA] [4] [x] [2] [DATA] [5] [DATA] [DEL] [7] [DATA] [8] [DATA] [9] [DATA] [n] SD SD SD SD SD SD SD SD SD SD SD -E18- DEG 0. DEG 9. Set to statistical mode Clear all data Enter data 1, 2, 3 (Value: 2) Enter data 4 (Value: 3) Enter data 5, 6 (Value: 4) Enter data 7 (Value: 5) Cancel data 7 Enter data 7 (Value: 7) Enter data 8 (Value: 8) Enter data 9 (Value: 9) Number of data [SHIFT] [x2] [SHIFT] [x] [x] [n­1] [SHIFT] [n] [SHIFT] [SD] [ON/C] Notes: SD SD SD SD SD SD SD DEG 247. DEG 4. 555555556 DEG 2. 743679606 DEG 2. 586765939 DEG 2. 586765939 DEG 0. Sum of square value Sum of value Arithmetical mean Sample standard deviation Population standard deviation Back to normal mode Clear display The sample standard deviation n­1 is defined as x 2 - (x ) 2 n n -1 (x ) 2 n The population standard deviation n is defined as x 2 - n The arithmetical mean x is defined as x n · You do not have to press n, n­1, x , n, x or x2 in any particular sequence. [. . . ]