valutazioni - 2, GPA: 3.5
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3. Enter the correct mode and try performing the calculation again. If the above steps do not correct the problem, press the 5key. The calculator performs a self-check operation and deletes all data stored in memory if any abnormality is detected. Make sure you always keep written copies of all important data. k Error Messages The calculator is locked up while an error message is on the display. Press t to clear the error, or press e or r to display the calculation and correct the problem. See “Error Locator” for details. E-28 Math ERROR •Causes • Calculation result is outside the allowable calculation range. • An attempt to perform a function calculation using a value that exceeds the allowable input range. • An attempt to perform an illogical operation (division by zero, etc.) • Action • Check your input values and make sure they are all within the allowable ranges. Pay special attention to values in any memory areas you are using. Stack ERROR •Cause • The capacity of the numeric stack or operator stack is exceeded. • Action •Simplify the calculation. The numeric stack has 10 levels and the operator stack has 24 levels. •Divide your calculation into two or more separate parts. Syntax ERROR •Cause • An attempt to perform an illegal mathematical operation. • Action •Press e or r to display the calculation with the cursor located at the location of the error and make required corrections. Arg ERROR •Cause •Improper use of an argument • Action •Press e or r to display the location of the cause of the error and make required corrections. E-29 k Order of Operations Calculations are performed in the following order of precedence. 1 Coordinate transformation: Pol (x, y), Rec (r, .) 2 Type A functions: With these functions, the value is entered and then the function key is pressed. x3 , x2 , x1 , x!, ° ’ ” m, m1, m2, n Angle unit conversions (DRG') x 3 Powers and roots: ^ (xy), 4 ab/c 5 Abbreviated multiplication format in front of ., e (natu ral logarithm base), memory name, or variable name: 2., 3e, 5A, .A, etc. 6 Type B functions: With these functions, the function key is pressed and then the value is entered. , 3 , log, In, ex, 10x, sin, cos, tan, sin1, cos1 , tan1, sinh, cosh, tanh, sinh1, cosh1, tanh1, () 7 Abbreviated multiplication format in front of Type B functions: 2 3, Alog2, etc. 8 Permutation and combination: nPr, nCr 9 , 0 , • Operations of the same precedence are performed from right to left. exIn 120 > ex{In( 120)} •Other operations are performed from left to right. • Operations enclosed in parentheses are performed first. •When a calculation contains an argument that is a negative number, the negative number must be enclosed within parentheses. The negative sign (–) is treated as a Type B function, so particular care is required when the calculation includes a high-priority Type A function, or power or root operations. Example: ( –2)4 = 16 –24 = –16 E-30 k Stacks This calculator uses memory areas, called “stacks,” to temporarily store values (numeric stack) and commands (command stack) according to their precedence during calculations. The numeric stack has 10 levels and the command stack has 24 levels. A stack error (Stack ERROR) occurs whenever you try to perform a calculation that is so complex that the capacity of a stack is exceeded. • Example: 123451 2 3 4 5 6 7 Numeric Stack Command Stack 1 2 2 3 3 4 4 5 5 4 1 2 3 4 5 6 7 •Calculations are performed in sequence according to “Order of Operations.” Commands and values are deleted from the stack as the calculation is performed. E-31 k Input Ranges Internal digits: 12 Accuracy*: As a rule, accuracy is ±1 at the 10th digit. Functions Input Range sinx DEG 0 x 4.4999999991010 RAD 0 x 785398163.3 GRA 0 x 4.9999999991010 cosx DEG 0 x 4.5000000081010 RAD 0 x 785398164.9 GRA 0 x 5.0000000091010 tanx DEG Same as sinx, except when x = (2n-1)90. RAD Same as sinx, except when x = (2n-1)./2. GRA Same as sinx, except when x = (2n-1)100. sin–1x 0 x 1 cos–1x tan–1x 0 x 9.9999999991099 sinhx 0 x 230.2585092 coshx sinh–1x 0 x 4.9999999991099 cosh–1x 1 x 4.9999999991099 tanhx 0 x 9.9999999991099 tanh–1x 0 x 9.99999999910–1 logx/lnx 0 x 9.9999999991099 10x –9.9999999991099 x 99.99999999 ex –9.9999999991099 x 230.2585092 x 0 x 1 10100 x2 x 1 1050 1/x x 1 10100 ; x G0 3 x x 1 10100 x! 0 x 69 (x is an integer) nPr 0 n 11010, 0 r n (n, r are integers) 1 {n!/(n–r)!} 110100 E-32 Functions Input Range nCr 0 n 11010, 0 r n (n, r are integers) 1 [n!/{r!(n–r)!}] 110100 Pol(x, y) x , y 9.9999999991049 (x2+y2) 9.9999999991099 Rec(r, ) 0 r 9.9999999991099 .: Same as sinx °’ ” a , b, c 110100 0 b, c x 110100 Decimal - Sexagesimal Conversions 0°0°0° x 999999°59° ^(xy) x0: –110100ylogx100 x0: y0 x0: yn, (n is an integer) However: –110100 ylog x 100 1 2n+1 x y y0: x G0 –1101001/x logy100 y0: x0 y0: x2n1, (n G0; n is an integer) However: –110100 1/x log y 100 1 n ab/c Total of integer, numerator, and denominator must be 10 digits or less (including division...
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