User manual SHARP EL-531H OPERATION EXAMPLES

[. . . ] indicate that the statistical mode is selected. normal mode, press @" with disappears as the calculator returns to normal mode. To enter equation mode, press appears on the @ and then 0 or 1. display to indicate that the equation mode is selected. [. . . ] To delete a number/function, move the cursor to the number/ function you wish to delete, then press d. If the cursor is located at the right end of an equation, the d key will function as a back space key. To insert a number, move the cursor to the place immediately after where the number is to be inserted, then enter the number. 15 + 8 15 3 15 3 = 15 6 = 13 24 = 15 24 = N 15 + 8 dd -3 N 15 * 3 = < d6= N 13 * 24 = > >d 5 = 1. 81025 8. 415778426 2'401. 256. 37= [Floating point] [Scientific notation] [TAB set to 2] [Floating point] 0. 428571428 4. 2857142861001 4. 291001 0. 428571428 4!= 10P3 = 5C2 = Calculating the Greatest Common Factor (G. C. F. ) or Least Common Multiple (L. C. M. ) To calculate the G. C. F. or the L. C. M. , the procedures are as follows: What is the G. C. F. 1324 360. Use @ to switch to the scientific notation, press @i, then give a value between 0 and 9 to set the decimal placement. The number will be displayed in scientific notation if the floating point value does not fit in the following range: 0. 000000001 | x | 9999999999 The last decimal digit in scientific notation will be rounded off. = 3 11 += 45 200 32% = 4 @ + 5 @= 200 * 32 @% 24GCF36_ 12. 15LCM9_ 45. 150 300 = ?% 150 / 300 @% 200 + (200 32%) = 200 + 32 @% 300 (300 25%) = 300 - 25 @% Determination of the Angular Unit In this calculator, the following three angular units (degrees, radians, and grads) can be specified. DEG () Calculating Quotient and Remainder " : Calculates the quotient and remainder. 23 5 = (R: Remainder) 9. 5 4 = 32 (5) = N 23 " 5 = 9. 5 " 4 = 32 " 5 = Hard Case Random Numbers RAD (rad) Press G GRAD (g) A pseudo-random number with three significant digits can be generated by pressing @`=. To generate the next random number, press =. 4. 9. 5`4_ R1. 5 Priority Levels in Calculation DISPLAY Symbol This calculator performs operations according to the following priority: 1 Functions expressed with numerical data placed before (such as x1, x2, n!) 2 yx, x y 3 Functions expressed with numerical data placed after (such as sin, cos, (), ex, 10x, ) 4 Multiplications with the sign "" omitted from the front of a function (such as 3cos20) 5 nCr, nPr, GCF, LCM 6 , , INT, mod 7 +, 8 Operations end commands (such as =, M+, %, DEG, RAD, GRAD, DATA, CD) A parenthesized calculation section has precedence over other sections of the calculation. Angular Unit Conversions SCIENTIFIC CALCULATIONS Select the normal mode. In some cases, a decimal may not be converted to a fraction. : Converts an improper fraction or a mixed fraction to a decimal. 5 4 = 6 [A. xxx] [A/B] 13= [A/B] 65= [A/B] [AB/C] [A. xxx] 2 1. 25 + = 5 [AB/C] N456= 1/3= 6/5= 1. 25 + 2 5 = == SIMP Up to 10 key strokes, including "" and "/", can be used to enter a fraction. Calculating with Fractions Fractions can be incorporated into an arithmetic calculation. The "SIMP" symbol will appear with a calculation result if the answer can be further simplified. Refer to the following section of this manual for details. 11 += 23 21 ׭= 53 7 ( )5 = 5 N12+13= 25*13= 7 5 @TM 5 = / 64 225 = @c 30 5 k 40 3 k 50 10 k 60 12 k 70 13 k 80 9 k 90 7 k 100 3 k @ @ @p @n @z @w Errors An error will occur if an operation exceeds the calculation ranges, or if a mathematically illegal operation is attempted. If 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 N to clear the equation. Error Codes and Error Types Syntax error (Error 1): An attempt was made to perform an invalid operation. 2 +- 5 = Calculation error (Error 2): The absolute value of an intermediate or final calculation result equals or exceeds 10100. An attempt was made to divide by 0 (or an intermediate calculation resulting in 0). The calculation ranges were exceeded while performing calculations. The solution of a quadratic equation is a complex number. Depth error (Error 3): The available number of buffers was exceeded. [. . . ] In the input/display screen of coefficients and the display screen of the solution (result), press N to return to the previous coefficient. To clear all the entered coefficients, press @c. The results obtained using this function may include a margin of error. The solution of a quadratic equation is only a real number. SPECIFICATIONS General arithmetic operations, statistical calculations, equation solvers, etc. [. . . ]