User manual SHARP EL-509/531V/VH/H ANNEXE 1

[. . . ] In addition, the calculator can carry out the logical operations AND, OR, NOT, NEG, XOR and XNOR on binary, octal and hexadecimal numbers. Conversion to each system is performed by the following keys: @ê: Converts to the binary system. @ì: Converts to the hexadecimal system. @í: Converts to the decimal system. [. . . ] · When installing, orient each battery properly as indicated in the calculator. Constant Calculations (3) · 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. X Rectangular coord. Polar coord. DISPLAY Functions Equation Display Symbol (4) · Refer to operation examples of each function. · Before starting calculation, specify the angular unit. · The results of inverse trigonometric functions are displayed within the following range: = sin x, = tan x ­1 ­1 · The calculation result is automatically stored in memories X and Y. Value of r or x: X memory Value of or y: Y memory Modify Function (13) Mantissa Exponent DEG RAD GRAD = cos­1 x 0 180 0 0 200 (During actual use not all symbols are displayed at the same time. ) If the value of mantissa does not fit within the range ±0. 000000001 ­ ±9999999999, the display changes to scientific notation. The display mode can be changed according to the purpose of the calculation. / ­90 90 ­---- 2 2 ­100 100 In this calculator, all calculation results are internally obtained in scientific notation with up to 12 digits for the mantissa. However, since calculation results are displayed in the form designated by the display notation and the number of decimal places indicated, the internal calculation result may differ from that shown in the display. By using the modify function, the internal value is converted to match that of the display, so that the displayed value can be used without change in subsequent operations. When to Replace the Batteries If the display has poor contrast or nothing appears on the display even when ª is pressed in dim lighting, it is time to replace the batteries. Caution · Keep batteries out of the reach of children. · Exhausted batteries left in the calculator may leak and damage the calculator. · Turn the power off by pressing @ F. 1) Slide the battery cover slightly and lift it to remove. Remove the used batteries by prying them with a ball-point pen or other similar pointed device. Make sure the "+" side facing up. 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. Complex number entry 1Rectangular coordinates 2Polar : Appears when statistics mode is selected. : Indicates that a numerical value is stored in the independent memory. : Appears when the calculator shows the angle as a result in the complex calculation mode. M i : Indicates an imaginary number is being displayed in the complex calculation mode. 1 S=--h{(a)+4{(a+h)+(a+3h)+······+(a+(N­1)h)} 3 +2{(a+2h)+(a+4h)+······+(a+(N­2)h)}+f(b)} h= b ­ a N N=2n a x b x-coordinate + y-coordinate Ü or x-coordinate + Ü y-coordinate coordinates rÖ r: absolute value : argument · Upon changing to another mode, the imaginary portion of any complex number stored in the independent memory (M) will be cleared. · A complex number expressed in rectangular coordinates with the y-value equal to zero, or expressed in polar coordinates with the angle equal to zero, is treated as a real number. (Fig. 2) BEFORE USING THE CALCULATOR Key Notation Used in this Manual In this manual, key operations are described as follows: ex XE Differential calculation: dx dx f(x+ ­­)­f(x­ ­­) 2 2 f'(x)=---------------- dx [When performing integral calculations] Integral calculations, depending on the integrands and subintervals included, require longer calculation time. During calculation, "Calculating!" will be displayed. [. . . ] Equations also include calculation ending instructions such as "=" and a maximum of 142 characters can be stored in memory. When the memory is full, stored equations are deleted in the order of the oldest first. Pressing [ will display the previous equation and the answer. Further pressing [ will display preceding equations (after returning to the previous equation, press ] to view equations in order). [. . . ]