Table of Contents
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General Guide ................................................. 3
Before Starting Calculation ............................ 4
Basic Calculations ........................................ 10
Scientific Function Calculations .................. 11
File name : HDB0R100704_English_text_071113
version : 07/10/15
Turning on or off............................................. 3
Battery replacement ....................................... 3
Auto power-off function ................................. 3
Reset operation .............................................. 3
Contrast adjustment ....................................... 3
Display readout .............................................. 4
Using " MODE " keys ...................................... 4
Using " SET UP " keys.................................... 5
Using Math Mode ............................................ 5
Using " 2nd " " ALPHA " Keys ........................ 6
Making corrections during Input.................... 6
Error Position Display Function..................... 6
Replay function .............................................. 6
Memory calculation ........................................ 7
Order of operations ........................................ 7
Accuracy and Capacity................................... 8
Error conditions ............................................. 9
Arithmetic calculation .................................. 10
Parentheses calculations ............................. 10
Percentage calculation................................. 11
Display notations.......................................... 11
Answer Function .......................................... 11
Logarithmic and Exponential functions....... 12
Fraction calculation...................................... 12
Angle unit conversions ................................ 12
Decimal transformation...... 13
Trigonometric / Inverse-Tri. functions.......... 13
Hyperbolic / Inverse-Hyp. functions............. 13
Coordinates transformation ......................... 13
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Table of Contents
Related Manuals for Citizen SR-270X
Summary of Contents for Citizen SR-270X
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Page 1: Table Of Contents
General Guide ..........3 Turning on or off..........3 Battery replacement ........3 Auto power-off function ......... 3 Reset operation ..........3 Contrast adjustment ........3 Display readout ..........4 Before Starting Calculation ......4 Using "... - Page 2 Probability ............ 13 Other functions ( √ , , Abs, RND ) ......... 14 Multi-statement Function ......14 Statistical Calculations .........14 To Enter data for statistical analysis.... 15 To analyze data you have entered ....15 ...
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Page 3: General Guide
General Guide Turning on or off To turn the calculator on, press [ ON ]; To turn the calculator off, press [ 2nd ] [ OFF ]. Battery replacement SR-270X is a dual power system which is powered by one button-type battery (G13 or L1154) and a solar cell. -
Page 4: Display Readout
Display readout The display comprises the entry line, the result line, and indicators. Indicator M at h 12369x7532 x Entry line 9 . 31 6 3 30 8 Result line Entry line SR-270X displays an entry of up to 99 digits. Entries begin on the left;... -
Page 5: Using " Set Up " Keys
Give " 2: STAT " as an example: Method : Press [ MODE ] and then key in directly the number of the mode, [ 2 ] , to enter the desired mode immediately. Using " SET UP " keys [ 2nd ] [ SET UP ] display the setup menu that enables you to specify the input /output format, the angle mode, the numeric notation, the statistical setting or the contrast adjustment. -
Page 6: Using " 2Nd " " Alpha " Keys
Using " 2nd " " ALPHA " Keys To execute the functions marked in yellow, please press [ 2nd ] and then the corresponding key. When you press [ 2nd ], the " 2nd " indicator shown on the display indicates that you will be selecting the second function of the next key you press. -
Page 7: Memory Calculation
Memory calculation Memory variable The calculator has seven memory variables for repeated use -- A, B, C, D, M, X, Y. You can store a real number in any of the seven memory variables. See Example 5. • [ 2nd ] [ STO ] + [ A ] ~ [ D ], [ M ], [ X ] ~ [ Y ] lets you store values to variables. -
Page 8: Accuracy And Capacity
Functions preceded by values, powers, power roots, for –1 example, x , x!, DMS, ° , r , g , x Fractions Negations ( – ) Statistical estimated value calculation: x ˆ , y ˆ , x ˆ , x ˆ nPr, nCr Multiplication sign omitted immediately before e, variable, and... -
Page 9: Error Conditions
≦ 2.15443469003 x 10 ＜1 x 10 , x≠0 1 x 10 0 ≦ x ≦ 69 ( x is an integer) 0≦r≦n, 0≦n 1 x 10 (n,r are integers) 1≦{n!/(n-r)!} 1 x 10 0≦r≦n, 0≦n 1 x 10 (n,r are integers) 1≦n!/r! 1 x 10 or 1≦{n!/(n-r)!} 1 x 10 ＜... -
Page 10: Basic Calculations
(3) When result of function calculations exceeds the range specified (4) When specifying an argument to a function outside the valid range Syntax ERROR (1) Input errors are made, ex. improper syntax (2) When improper arguments are used in commands or functions Stack ERROR When a calculation expression exceeds the capacity of the numeric stack or command... -
Page 11: Percentage Calculation
Percentage calculation [ 2nd ] [ % ] divides the number in the display by 100. You can use this key sequence to calculate percentages, add-ons, discounts, and percentage ratios. See Example 12~13. Display notations The calculator has the following display notations for the display value. -
Page 12: Logarithmic And Exponential Functions
Logarithmic and Exponential functions The calculator can calculate common and natural logarithms, and exponentiation using [ log ], [ ln ], [log b], [ 2nd ] [ 10 ], and [ 2nd ] ]. See Example 16~17. Fraction calculation Fraction value display is as follows: Improper Fraction Mixed Fraction Math format:... -
Page 13: Sexagesimal Decimal Transformation
Sexagesimal Decimal transformation You can use sexagesimal figure (degree, minute and second) to perform calculations and convert values between sexagesimal and decimal notation by using [ DMS ] or [ 2nd ] [ DMS ] keys. See Example 22~23. Sexagesimal figure value display is as follows: Represent 125 degrees (D), ׀... -
Page 14: Other Functions
[ nCr ] Calculates the number of possible combinations of n items taken r at a time. [ x ! ] Calculates the factorial of a specified integer n , where n ≦ 69. ] Generates a random real number between 0.000 and RANDM 0.999. -
Page 15: To Enter Data For Statistical Analysis
To Enter data for statistical analysis Before entering data, press [ 2nd ] [ SET UP ] [ ] [ 3 ] in sequence to set Frequency column as On or Off. FREQ column enables you to enter the number of repeats for each of the same value occurred. See Example 41. - Page 16 [5: Var] [ 4 ] Sample standard deviation of x x σ n-1 values minX [6: MinMax] [ 1 ] Minimum of x-value maxX [6: MinMax] [ 2 ] Maximum of x-value Paired-variable statistics / Regression calculations Variables Keys Meaning [4: Sum] [ 2 ] Sum of all x values or y values Σ...
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Page 17: To View Or Change Data
[7: Reg] [ 5 ] Estimated value of x2 ˆ x [7: Reg] [ 6 ] Estimated value of y y ˆ You also can add a new data anytime. The unit automatically recalculates statistics each time you press [ = ] and enter a new data value.