Citizen SR-285, User Manual

Page 1: ...3 Accuracy And Capacity 3 Error Conditions 3 2 Mode 0 MAIN 3 2 1 Arithmetic Calculations 3 2 2 Display formats 3 2 3 Parentheses Calculation 3 2 4 Percentage Calculation 3 2 5 Continuous calculation...

Page 2: ...E 2 File name SR19 English doc vision 2003 08 24 4 2 Negative expression 3 4 3 Basic arithmetic operations for bases 3 4 4 Logical operation 3 5 Mode 3 CPLX 3 6 Mode 4 VLE 3 7 Mode 5 QE 3...

Page 3: ...to turn the power on Auto Power Off Function This calculator automatically turns it off when not operated for approximately 9 15 minutes It can be reactivated by pressing ON key and the display memory...

Page 4: ...a decimal a negative sign a x10 indicator and a 2 digits positive or negative exponent Results that exceed the digit limit are displayed in scientific notation Indicators The following indicators app...

Page 5: ...mode 2 to enter the mode immediately Selecting an item from display menus Many functions and settings are available on menus A menu is a list of options displayed across the entry line Give Pressing...

Page 6: ...means the calculator is in insert mode On the contrary the blinking cursor is displayed as and it means the calculator is in overwrite mode To clear all characters clear all input character by CL key...

Page 7: ...to variables 2nd RECALL recalls the value of variable 2nd CL VAR clears all variables except PROG 2nd CL PROG clears the contents of PROG Order Of Operations Each calculation is performed in the follo...

Page 8: ...eral every reasonable calculation is displayed up to 10 digits mantissa or 10 digits mantissa plus 2 digits exponent up to 10 99 Numbers used as input must be within the range of the given function as...

Page 9: ...ad 100 2n 1 n is an integer DMS DD MM SS SS 1 x 10 100 0 MM SS SS x 2 777777777 x 10 96 x y x 0 1 x 10 100 y log x 100 x 0 y 0 x 0 y n 1 2n 1 n is an integer but 1 x 10 100 Y log x 100 x y y 0 x 0 1 x...

Page 10: ...gument to a function outside the valid range DOMAIN Error DOMAIN Er FREQ value in 1 VAR stats 0 or non integer FREQ DOMAIN Error DIVIDE BY 0 You attecmpted to divide by 0 DIVIDE BY 0 Error OVERFLOW Er...

Page 11: ...See Example 10 z Even if the number of decimal places is specified internal calculation for a mantissa is performed in 14 digits for SRP 285 and 24 digits for SRP 280 and the display value is stored i...

Page 12: ...number in the display by 100 You can use this key sequence to calculate percentages add ons discounts and percentages ratios See Example 19 2 5 Continuous calculation function z The calculator enables...

Page 13: ...mat See Example 27 2 9 Angle Unit Conversion The angle units DEG RAD GRAD is set by pressing DRG to display the angle menu The relation among the three angle units is 180 rad 200 grad Angle conversati...

Page 14: ...ple 33 Rectangular Coordinates Polar Coordinates x y i r cos i sin Note When using those key make sure the calculator is set for the angle unit you want 2 13 Probability z Pressing PRB displays the pr...

Page 15: ...uum 299792458 m s g Standard acceleration of gravity 9 80665 m s 2 G Gravitational constant 6 6725985x10 11 N m2kg 2 Vm molar volume of ideal gas 0 0224141 m 3 mol 1 NA Avagadro s number 6 022136736 x...

Page 16: ...d The values is copied to the entry line 4 To predict a value for x or y given a value for y or x select the x or y variable press ENTER enter the given value and press ENTER again Variable Meaning n...

Page 17: ...d h b o or an error message will appear Binary base b 0 1 Octal base o 0 1 2 3 4 5 6 7 Decimal base d 0 1 2 3 4 5 6 7 8 9 Hexadecimal base h 0 1 2 3 4 5 6 7 8 9 A B C D E F Pressing can use block func...

Page 18: ...ue 6 Mode 4 VLE Variable linear equations VLE mode can solve a set of simultaneous equations with two unknowns as follows a x b y c d x e y f where x and y are unknown z In VLE mode you just enter eac...