C CE

+ –

MU

M

M

STR

Non-add— When this key is pressed right after an entry of a number in the Print mode, the entry is printed on the left-hand side with “#”.

This key is used to print out numbers not subjects to calculation such as code, date, etc

Subtotal — Used to get subtotal(s) of additions and/or subtractions. When pressed following + or – , the subtotal is printed with “” and the calculation may be continued.

CLEAR / CLEAR ENTRY KEY:

Clear — This key also serves as a clear key for the calculation register and resets an error condition.

Clear entry — When pressed after a number and before a function, clear the number.

TOTAL KEY:

When pressed after + or – , prints the total of addition and subtraction with “”.

EQUAL KEY:

Gives the results of multiplication and division and performs repeat calculation with a constant.

Multiplication:

The calculator will automatically remember the first number entered (the multiplicand) and instruction.

Division:

The calculator will automatically remember the second number entered (the divisor) and instruction.

CHANGE SIGN KEY:

Changes the algebraic sign of a number (i.e., positive to negative or negative to positive).

MARKUP KEY:

Used to perform mark-ups, percent change and automatic add-on/discount.

RECALL AND CLEAR MEMORY KEY

RECALL MEMORY KEY

STORE KEY:

This key is used to store an exchange rate.

A maximum of 6 digits can be stored (decimal point is not counted as a digit).

Only one rate can be stored. If you enter a new rate, the previous rate will be cleared.

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Sharp EL-1801E operation manual Clear / Clear Entry KEY, Total KEY, Equal KEY, Change Sign KEY, Markup KEY

EL-1801E specifications

The Sharp EL-1801E is a highly regarded scientific calculator that has garnered attention for its exceptional features, robust build, and user-friendly interface. Designed for students, educators, and professionals alike, this calculator combines advanced technology with practicality, making it an ideal companion for a wide range of mathematical computations.

One of the defining characteristics of the EL-1801E is its comprehensive set of functions. With over 220 built-in functions, including advanced trigonometric, logarithmic, and statistical calculations, it caters to the needs of various users, from high school students to university scholars. This extensive functionality ensures that users can perform complex calculations without requiring additional tools.

The EL-1801E is equipped with a dual-line display, enabling users to view both the input and output simultaneously. This feature enhances the user experience, allowing for easy verification of calculations and improving overall efficiency. The display is designed to be clear and legible, even in low-light conditions, thanks to its backlit feature, which further contributes to its usability.

In terms of design, the Sharp EL-1801E boasts a slim profile, making it portable for on-the-go calculations. Its durable construction ensures that it can withstand the rigors of daily use, whether in a classroom or a professional setting. The calculator is powered by solar energy, supplemented by a battery, ensuring long-lasting performance and reducing the need for frequent battery changes.

Another noteworthy aspect of the EL-1801E is its memory capabilities. The calculator allows users to store and recall values, which is particularly beneficial when working with long calculations or when needing to reference previous results. This memory function is essential for those who frequently deal with repetitive calculations or complex equations.

Moreover, the EL-1801E comes with convenient features such as a fraction conversion, which simplifies the process of working with rational numbers. Its percentage calculations and constant functions offer added efficiency for users engaged in financial, statistical, or engineering-related tasks.

In summary, the Sharp EL-1801E scientific calculator stands out for its powerful functions, user-friendly display, and portability. Its advanced features, durable build, and energy-efficient design make it a reliable tool for anyone needing a versatile calculator, whether in education or professional environments. As technology continues to evolve, the EL-1801E remains a relevant and indispensable asset for precise mathematical calculations.