User manual CITIZEN FS-60BKII

[. . . ] Entries begin on the left; those with more than 15 digits scroll to the left. However, whenever you input the 89th digit of any calculation, the cursor changes from " " to " " to let you know memory is running low. If you still need to input more, you should divide your calculation into two or more parts. Result line It displays a result of up to 10 digits, as well as a decimal, a negative sign, a " x10 " indicator, and a 2-digit positive or negative exponent. [. . . ] If you press [ ALPHA ] by mistake, simply press [ ALPHA ] again to remove the " A " indicator. Making corrections during Input In linear format, you can press [ 2nd ] [ INS ] to switch between the two modes, whereas in Math format, you can use only the insert mode. In insert mode, the character in front of the cursor " " will be deleted or inserted after you press [ DEL ] or enter a new character In overwrite mode, the character at the cursor " " will be deleted by [ DEL ] key or replaced by any new character you enter. When a mathematically illegal calculation performed causes an error and an error message ( See < Error conditions > ) appears, press [ ] [ ] and then the error position display function will tell you with the cursor where the error is. In that case, please make necessary corrections before executing the calculation again. After execution is completed, pressing [ ] or [ ] key will display the operation executed. You can continue moving the cursor by [ ] or [ ] to display previous input steps and editing values or commands for subsequent execution. The operation records in Memory are cleared each time when you turn off the calculator, press [ ON ] key, perform a "reset", change display format or calculation mode. When the memory is full, the oldest calculation records are deleted automatically to make room for the new ones. Memory variable The calculator has seven memory variables for repeated use -- A, B, C, D, M, X, Y. [ ALPHA ] + " memory variable " lets you insert the applicable variables in a calculation. The correct result cannot be derived by entering [ ( ] 2 [ + ] 3 [ ) ] x x [ x10 ] 2. You can use this key sequence to calculate percentages, add-ons, discounts, and percentage ratios. Fixed Decimal Point Notation To specify the number of decimal places, press [ 2nd ] [ SET UP ] [ 6 ] and then a value indicating the number of places ( 0~9 ). Scientific Notation Scientific notation expresses numbers with one digit to the left of the decimal and the appropriate power of 10. To select scientific notation, press [ 2nd ] [ SET UP ] [ 7 ], and then a value (0~9) to specify the number of decimal digits. Once a numeric value or numeric expression is entered and [ M+ ], [ 2nd ] [ M­ ], [ RCL ], [ 2nd ] [ STO ] or [ = ] is pressed, the result is stored by this function. (Note) : Even if execution of a calculation results in an error, however, Answer memory retains its current value. The calculator can calculate common and natural logarithms, and x exponentiation using [ log ], [ ln ], [log a b], [ 2nd ] [ 10 ], and [ 2nd ] x [ e ]. (Note) : Values are automatically displayed in decimal format whenever the total number of digits of a fractional value ( integer + numerator + denominator + separator marks ) exceeds 10. In Linear mode, to enter a mixed number, enter the integer part, press [ d/e ], enter the numerator, press [ d/e ], and enter the denominator ; To enter an improper fraction, enter the numerator, press [ d/e ], and enter the denominator. During a fraction calculation, if the figure is reducible, a figure is reduced to the lowest terms after pressing the [ = ] key. [. . . ] X + y i = r (cos+ i sin) (Note) : When using those keys, make sure the calculator is set for the angle unit you want. The calculator can perform the conversion between rectangular coordinates and polar coordinates by [ 2nd ] [ P R ] and [ 2nd ] [ R P ]. This calculator provides the following probability functions (See Example 31~34. ): [ nPr ] Calculates the number of possible permutations of n item taken r at a time. [. . . ]