Citizen SRP-145T User Manual
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Citizen SRP-145T User Manual

Citizen SRP-145T User Manual

Scientific calculator
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BASIC DEFINITIONS .............................................. 2
The Keys ................................................................................. 2
General Keys ........................................................................... 2
Memory Keys........................................................................... 2
Special Keys ............................................................................ 3
Function Keys .......................................................................... 4
Statistical Keys (Use in the SD mode only) ............................. 6
The Display.............................................................................. 6
OVERFLOW OR ERROR CHECK .......................... 7
REPLACING THE BATTERIES............................................... 7
BASIC OPERATION ............................................... 8
TURNING ON THE CALCULATOR ........................................ 8
Normal Calculations ................................................................ 8
Constant Calculations.............................................................. 9
Memory Calculations ............................................................. 11
Function Calculations ......................................... 12
Sexagesimal ↔ Decimal Conversion .................................... 12
Factorials ............................................................................... 16
STANDARD DEVIATIONS.................................... 18
PROGRAMMING................................................... 19
Storing Mathematical Procedures ......................................... 19
SRP-145T
Scientific Calculator
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Summary of Contents for Citizen SRP-145T

  • Page 1: Table Of Contents

    SRP-145T Scientific Calculator BASIC DEFINITIONS ..........2 The Keys ................. 2 General Keys ................2 Memory Keys................2 Special Keys ................3 Function Keys ................4 Programming Keys (Use in the PGM mode only)....5 Statistical Keys (Use in the SD mode only) ......6 The Display................

  • Page 2: Basic Definitions

    BASIC DEFINITIONS The Keys To keep your calculator as compact as possible, some keys have more than one function. You can change the function of a key by pressing another key first, or by setting the calculator in a certain mode.

  • Page 3: Special Keys

    [SHIFT] [Ka ], [SHIFT] [Kb ] Constant (Ka, Kb) Memory Store Press to enter the displayed value into constant memory Ka or Kb. ], [Kb ] Constant (Ka, Kb) Memory Recall Key Press to display the contents of a constant memory. Notes: •...

  • Page 4: Function Keys

    [SHIFT] [X↔Y] Register Exchange Key Press [SHIFT] [X↔Y] to exchange the displayed value (X−register) with the contents of the working register (Y−register). [SHIFT] [FIX] Decimal Point Set Key Use to set the number of digits displayed after the decimal point in either final or intermediate results.

  • Page 5: Programming Keys (Use In The Pgm Mode Only)

    Press [ ] to find the square root of the displayed value. To square the displayed value, press [x [SCI] Scientific Key Converts the displayed number into a power of ten and back. Example: You Press You See 12.3456 x 10 = 123.456 1.23456 02 123.456...

  • Page 6: Statistical Keys (Use In The Sd Mode Only)

    Statistical Keys (Use in the SD mode only) [SHIFT] [SD] Statistical Mode Select Key Sets the calculator to the statistical calculation mode. SD appears on the display. [SHIFT] [CAD] Statistical Register Clear Key Clears the statistical calculation registers. [DATA], [DEL] Data Entry and Delete Key In the SD mode, enter data by pressing the desired numbers, then [DATA].

  • Page 7: Overflow Or Error Check

    HYP : Appears when the hyperbolic function has been selected. : Appears when you press [ ( ]. It shows the present level of nesting. ( | ) : Appears when you press [SHIFT] [[x]] in the program learn mode and when program execution halts to let you enter a variable.

  • Page 8: Basic Operation

    7. Tighten the screws. BASIC OPERATION TURNING ON THE CALCULATOR Press [ON/C] to turn on your calculator. A " 0 " shows on the display. If you leave your calculator on without making any calculation, it automatically turns itself off in approximately 10 minutes to save battery life.

  • Page 9: Constant Calculations

    Enter value Enter operation Enter operation, [ ( ] show symbol Enter value to operate by Enter operation Enter value to operate by Enter operation Enter operation, [ ( ] show symbol Enter value to operate by Enter operation Enter value to operate by Enter operation, 122.
  • Page 10 Enter value [ − ] Enter operation Enter value to [5] [•] [6] operate by Enter operation, show result Enter value to [4] [•] [5] operate by Enter operation, [+/ − ] − 4.5 show result Enter operation, − 10.1 show result Example: 2.3 x 12 = 27.6 −...

  • Page 11: Memory Calculations

    Memory Calculations Notes: • Do not set the function mode to "SD" when performing memory calculations. • A new number entered into memory by pressing [X M] replaces any number previously stored. • To clear the memory’s contents, press [0] [X M] or [ON/C] [X M] in sequence.

  • Page 12: Function Calculations

    • When the [SHIFT] [X M] keys are pressed after the [MR] key, the displayed number is exchanged with the contents of the memory. Function Calculations Notes: • This calculator computes π = 3.141592654 and e = 2.718281829. In some scientific functions, the display disappears momentarily •...

  • Page 13: Hyperbolic Functions And Inverse Hyperbolic Functions

    Enter operation, 0.597672477 show result Example: sin − 1 0.8 − cos − 1 0.9 = 27°17’17.41” Press Display Comment [•] [8] Enter value Enter operation, [SHIFT] show symbol Enter operation, − 1 [sin 53.13010235 show result [ − ] Enter operation 53.13010235 Enter value to...

  • Page 14: Common And Natural Logarithms/Exponentiations

    Enter operation, [SHIFT] M 2F show symbol Enter operation, [HYP] M HYP show symbol Enter operation, [sin] 2.129279455 show result Enter operation, 0.22313016 show result Enter operation, [In] − 1.5 show result Example: sinh − 1 2 x cosh − 1 1.5 = 1.389388924 Press Display...
  • Page 15 [4] [5] [6] Enter value 456. Enter operation, [X M] 456. show symbol Enter operation, [Log] 2.658964843 show result ÷ Enter operation 2.658964843 Enter operation, [MR] 456. show result Enter operation, [In] 6.12249281 show result Enter operation, 0.434294482 show result −...

  • Page 16: Square Roots, Cube Roots, Squares, Reciprocals, And Factorials

    Enter value to [1] [2] operate by Enter operation, 531441. show result Enter value to [1] [0] operate by Enter operation, [SHIFT] show symbol Enter operation, 22026.4658 show result Enter operation, 553467.4658 show result Square Roots, Cube Roots, Squares, Reciprocals, and Factorials = 5.287196909 Example: Press...
  • Page 17 Enter operation 1.709975947 Enter value to [2] [7] operate by Enter operation, [+/ − ] − 27. show result Enter operation, [SHIFT] show symbol Enter operation, − 3. show result Enter operation, − 1.290024053 show result = 12 Example: − Press Display Comment...

  • Page 18: Standard Deviations

    Enter operation, 900. show result Enter operation, 1023. show result Example: 8! (= 1 x 2 x 3 x ..x 7 x 8) = 40320 Press Display Comment Enter value Enter operation, [SHIFT] show symbol Enter operation, [x!] 40320. show result STANDARD DEVIATIONS •...

  • Page 19: Programming

    [SHIFT] [ Σ x Sum of square value 247. [SHIFT] [ Σ x] Sum of value [ x ] Arithmetical mean 4.555555556 Sample standard [ σ n–1 2.743679606 deviation Population standard [SHIFT] [ σ 2.586765939 deviation [SHIFT] [SD] Back to normal mode 2.586765939 [ON/C] Clear display...
  • Page 20 Your calculator learns mathematical procedures or programs in the Program (PGM) Mode. To set the calculator to the Program Mode, press [ SHIFT ] [ PGM ]. PGM appears on the display. Now enter your procedure as if you were just going to calculate it once - except - press [ SHIFT ] [ [x] ] before entering variable data.
  • Page 21 PROGRAM SHEET Program: ∆ Y transformation Description: ∆ • • • Example: = 12 (Ω) = 10 (Ω) = 47 (Ω) = 20 (Ω) = 82 (Ω) = 30 (Ω) Key Operation Display Comment Step into [1] [2] [SHIFT] Ka reg. into [4] [7] [SHIFT] Kb reg.
  • Page 22 M PGM 3854. M PGM 27.33333333 M PGM [SHIFT] [HALT] Halt 27.33333333 M PGM Recall R [MR] M PGM 984. M PGM 6.978723404 [SHIFT] [PGM] [1] [0] [SHIFT] = 10 (Ω) [2] [0] [SHIFT] = 20 (Ω) [3] [0] [X M] = 30 (Ω) [ON/C] [RUN] 3.333333333...
  • Page 23 PROGRAM SHEET Program: Total amount Description: Find the total amount of principal and interest on a $5,000 loan (x) at 6% annual interest (y) compounded annually over a period of 7 years (z)? Formula : total amount = x (1 + y) Example: (1) x = $5,000 (2) x = $1,000...
  • Page 24 [SHIFT] [PGM] [RUN] Specify variable (1) [1] [0] [0] [0] Enter value 1000. [RUN] Specify variable (2) [10] Enter value [RUN] Specify variable (3) Enter value [RUN] Show result 1610.51 E24-...

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