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General| Brand | Citizen |
|---|---|
| Model | SRP-280N |
| Category | Calculator |
| Language | English |
Instructions for powering the calculator on and off using the ON and 2nd+OFF keys.
Procedure for replacing the alkaline battery and solar cell for power.
Details on the automatic power-off feature to conserve battery life.
Steps to reset the calculator to default settings and clear memory contents.
How to adjust the display contrast for better readability.
Explanation of the calculator's display components: entry line, result line, and indicators.
Guide to selecting one of the six operating modes (MAIN, STAT, Base-n, CPLX, VLE, QE).
How to navigate and select options from the calculator's display menus.
Explanation of the '2nd' key for accessing secondary functions.
How to move the cursor using the arrow keys for input and editing.
Methods for correcting input errors, deleting characters, and using the replay function.
How the calculator displays errors and performs memory calculations (M+, M-, MRC).
Details on the priority of mathematical operations and function execution.
Information on output digits, calculating digits, and input range limits for functions.
Performing basic arithmetic operations, handling negative values, and operation priority.
Setting decimal places and number display formats (floating, scientific, engineering).
Using parentheses for order of operations and nested calculations.
Using the percentage key (%) for calculations like add-ons and discounts.
Repeating the last executed operation using the ENTER key.
Storing and recalling the most recently calculated result.
Calculating common and natural logarithms and antilogarithms.
Entering and calculating with fractions, including mixed numbers and conversions.
Converting between degrees, radians, and gradians, and DMS notation.
Using standard and inverse trigonometric, and hyperbolic functions.
Converting between rectangular and polar coordinates.
Using functions for permutations (nPr), combinations (nCr), factorials (!), and random numbers.
Using reciprocal, square root, square, and exponentiation functions.
Converting between metric and English units for distance, area, etc.
Accessing and using physical constants in calculations.
Entering and analyzing data for single or two-variable statistical calculations.
Calculating process capability indices (Cpk, Cpl, Cpa) using specification limits.
Calculating cumulative fractions for standard normal distribution (t, P(t), R(t), Q(t)).
Performing linear regression analysis and predicting values.
Methods for editing or correcting entered data in statistical modes.
Setting the number system (decimal, binary, octal, hexadecimal) for conversions.
Understanding negative number representation using complement notation in base-n modes.
Performing arithmetic and logical operations in binary, octal, and hexadecimal bases.
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