Table of Contents
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1
General Guide ....................................... 3
1–1
1–2
1–3
1–4
1–5
2
Mode 0 - MAIN....................................... 3
2–1
2–2
2–3
2–4
2–5
2–6
2–7
2–8
2–9
2–10
2–11
2–12
2–13
2–14
2–15
2–16
3
Mode 1 - STAT ....................................... 3
4
Mode 2 - Base-n .................................... 3
4 – 1
Power supply .................................................. 3
Contrast Adjustment ...................................... 3
Display Readout ............................................. 3
Key markings.................................................. 3
Before Starting Calculation............................ 3
Changing a mode ............................................. 3
Selecting an item from display menus............... 3
Using " 2nd " Keys ........................................... 3
Cursor.............................................................. 3
Making corrections during input ........................ 3
Replay function ................................................ 3
Error Position Display Function ........................ 3
Memory Calculations ........................................ 3
Order Of Operations ......................................... 3
Accuracy And Capacity..................................... 3
Error Conditions ............................................... 3
Arithmetic Calculations.................................. 3
Display formats .............................................. 3
Parentheses Calculation ................................ 3
Percentage Calculation .................................. 3
Continuous calculation function ................... 3
Answer Function ............................................ 3
Logarithm And Antilogarithm......................... 3
Fraction Calculation ....................................... 3
Angle Unit Conversion ................................... 3
Trigonometric / Inverse-Tri. Functions .......... 3
Hyperbolic / Inverse-Hyp. Functions ............. 3
Coordinates Transformation .......................... 3
Probability ...................................................... 3
Other Functions ( X
Unit Conversions............................................ 3
Physics Constants.......................................... 3
Bases conversions ......................................... 3
E – 1
–1
2
, √ ,
, X
X
, ^ ) ........... 3
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Table of Contents
Related Manuals for Citizen SRP-280
Summary of Contents for Citizen SRP-280
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Page 1: General Guide
General Guide ........3 1–1 Power supply ..........3 1–2 Contrast Adjustment ........3 1–3 Display Readout ..........3 1–4 Key markings..........3 1–5 Before Starting Calculation......3 Changing a mode ..........3 Selecting an item from display menus....3 ... - Page 2 4 – 2 Negative expression........3 4 – 3 Basic arithmetic operations for bases... 3 4 – 4 Logical operation ........... 3 Mode 3 - CPLX ........3 Mode 4 - VLE ......... 3 Mode 5 - QE........... 3 E – 2...
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Page 3: Power Supply
[ 2nd ] [ OFF ]. Battery Replacement SRP-280 is powered by two alkaline batteries (GP76A). SRP-285 is dual power system which is powered by one alkaline battery (GP76A) and a solar cell. If the display becomes dim and difficult to read (especially when lighting is dim for SRP-285), the batteries should be replaced as soon as possible. -
Page 4: Display Readout
Entry line Result line Entry line SRP-280 displays an entry of up to 76 digits. SRP-285 displays an entry of up to 80 digits. Entries begin on the left ; those with more than 11 digits scroll to the left. -
Page 5: Key Markings
1–4 Key markings Many of the calculator’s keys are used to perform more than one function. The functions marked on the keyboard are printed differently to help you find the one you need quickly and easily. Keyboard marking Meaning White Direct input Yellow Press [2nd] and then key... -
Page 6: Making Corrections During Input
See Example 1. The replay function can keep input digits up to 228 characters for SRP-280 or 320 characters for SRP-285. After execution is complete or during entering, you can press either [... -
Page 7: Memory Calculations
correct entry. You can also clear an error by pressing [ CL ] and then re-entered the values and expression from the beginning. See Example 3. Memory Calculations Press [ M+ ] to add a result to running memory. Press [ M– ] to subtract the value from running memory. -
Page 8: Accuracy And Capacity
• Anything contained within parentheses receives the highest priority. Accuracy And Capacity Output digits : ± 10th digit Calculating digits : SRP-280 → 24 digits SRP-285 → 14 digits In general, every reasonable calculation is displayed up to 10 digits ± 99... - Page 9 < 1 x 10 < 1 x 10 SRP-280 : 1–VAR : n ≤ 40, 2–VAR : n ≤ 40 SRP-285 : 1–VAR : n ≤ 42, 2–VAR : n ≤ 42 FREQ. = n, 0 ≤ n < 10 σ...
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Page 10: Error Conditions
VLE mode. NO REAL SOL There is no real solution to NO REAL SOL quadratic equation under QE mode. LENGTH Er An entry for SRP-280 exceeds 84 IMP LENGTH digits (The limit for SRP-285 is 88 Error E – 10... -
Page 11: Arithmetic Calculations
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 in 10 digits. To round off those values to the specified number of decimal places, press [ 2nd ] [ RND ]. -
Page 12: Percentage Calculation
calculation. SRP-285 can use up to 22 consecutive levels of parentheses in a single calculation. See Example 14. Closed parentheses occurring immediately before operation of the [ ENTER ] key may be omitted, no matter how many are required. See Example 15. A multiplication sign "... -
Page 13: Angle Unit Conversion
To convert a DMS notation to decimal, select ° (degrees), ′ (minutes), (seconds). See Example 30. ″ 2–10 Trigonometric / Inverse-Tri. Functions SRP-280 / SRP-285 provides standard trigonometric functions and –1 –1 –1 inverse trigonometric functions - sin, cos, tan, sin , cos and tan See Example 31. -
Page 14: Hyperbolic / Inverse-Hyp. Functions
(Note) : When using those keys, make sure the calculator is set for the angle unit you want. 2–11 Hyperbolic / Inverse-Hyp. Functions SRP-280 / SRP-285 uses [ 2nd ] [ HYP ] to calculate the hyperbolic –1 functions and inverse- hyperbolic functions – sinh, cosh, tanh, sinh –1 –1... -
Page 15: Unit Conversions
–1 Avagadro's number 6.022136736 x 10 –19 Elementary charge 1.6021773349 x 10 –1 Electron mass 9.109389754 x 10 –27 Proton mass (SRP-280) 1.672623110 x 10 –27 Proton mass (SRP-285) 1.672623110 x 10 –34 Plank's constant 6.626075540 x 10 –23 –1 Boltzmann's constant 1.38065812 x 10... -
Page 16: To Analyze Data You Have Entered
3. Enter an X - values and press [ 4. Enter the frequency ( FREQ for SRP-280 / F for SRP-285) of the X - value (in 1 -VAR mode) or the corresponding Y - value ( in 2 - VAR mode ) and press [ 5. -
Page 17: Bases Conversions
3. To change an entry, display it and enter the new data. The new data you enter overwrites the old entry. Press [ ] or [ ENTER ] to save the change. (Note) : Even you exit STAT mode, all data in 1 - VAR and 2 - VAR mode are still retained unless you clear all data by selecting CLR - DATA mode. - Page 18 (XOR), negation (NOT), and negation of exclusive logical sums (XNOR). See Example 43. Mode 3 - CPLX Complex mode enables you to add, subtract, multiply, and divide complex numbers. See Example 44. The results of a complex operation are displayed as follow : Real value Imaginary value Absolute value...