User manual SHARP EL-520XBWH

[. . . ] · A decimal number, variable, or exponent cannot be used in a fraction. Time, Decimal and Sexagesimal Calculations (9) Operational Notes To ensure trouble-free operation, please observe the following points: 1. Do not carry the calculator in the back pocket of slacks or trousers. Do not subject the calculator to extreme temperatures. Do not drop it or apply excessive force. [. . . ] · Explosion risk may be caused by incorrect handling. · Batteries must be replaced only with others of the same type. · Do not throw batteries into a fire as they may explode. X Rectangular coord. Polar coord. · The calculation result is automatically stored in memories X and Y. Value of r or x: X memory Value of or y: Y memory Replacement Procedure 1. 1) Slide the battery cover slightly and lift it to remove. [EL-509V/EL-531V] Remove the used batteries by prying them with a ball-point pen or other similar pointed device. 2) [EL-509VH/EL-520XBWH] Remove used batteries. [EL-509V/EL-531V] Make sure the "+" side facing up. [EL-509VH/EL-520XBWH] First insert the " ­ " side to the spring. Make sure that the display appears as shown below. If the display does not appear as shown, remove the batteries reinstall them and check the display once again. Modify Function (11) Selecting the Display Notation and Decimal Places The calculator has four display notation systems for displaying calculation results. 115 g (0. 254 lb) (Including batteries) Accessories: Batteries × 2 (installed), operation manual, operation examples sheet, quick reference card and hard case Calculations: : Appears when statistics mode is selected. : Indicates that a numerical value is stored in the independent memory. M · In the constant calculations, the addend becomes a constant. Subtraction and division are performed in the same manner. For multiplication, the multiplicand becomes a constant. · When performing calculations using constants, constants will be displayed as K. Entered data are kept in memory until @ c or @ m 1 (2) are pressed. Before entering new data, clear the memory contents. [Data Entry] Single-variable data Data k Data & frequency k (To enter multiples of the same data) Two-variable data Data x & Data y k Data x & Data y & frequency k (To enter multiples of the same data x and y. ) [Data Correction] Correction prior to pressing k: Delete incorrect data with ª. Correction after pressing k: Press > to confirm the latest entry and press @ J to delete it. Functions (4) BEFORE USING THE CALCULATOR Key Notation Used in this Manual In this manual, key operations are described as follows: ex ln x To specify ex : To specify ln : To specify x : @e I @KX · Refer to the operation examples of each function. · Before starting calculations, specify the angular unit. · The results of inverse trigonometric functions are displayed within the following range: = sin­1 x, = tan­1 x DEG RAD GRAD ­90 90 ­---- 2 2 ­100 100 = cos­1 x 0 180 0 0 200 Functions that are printed in orange above the key require @ to be pressed first before the key. When you specify the memory, press @K first. [. . . ] · an attempt is made to take the square root of a negative number. Entry (Display) M*1 × × A-D, X, Y*2 STAT, ANS × Angular Unit Conversions (5) ERROR AND CALCULATION RANGES Errors An error will occur if an operation exceeds the calculation ranges, or if a mathematically illegal operation is attempted. When an error occurs, pressing < (or >) automatically moves the cursor back to the place in the equation where the error occurred. Edit the equation or press ª to clear the equation. Each time @ g are pressed, the angular unit changes in sequence. Memory Calculations (6) This calculator has 6 temporary memories (A-D, X and Y), one independent memory (M) and one last answer memory. Independent memory and temporary memories are only available in the normal mode. [. . . ]