#14

Mr. Pen

Mr. Pen Scientific Calculator

Name: Scientific Calculator
Brand: Mr. Pen
SKU: B08FHNFPQK
Price: 5.85 JPY
Availability: InStock
Rating: 4.0625 (1 reviews)

Rating

Model: -

$5.85(incl. tax)Amazon price as of 2025-09-29

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Product Overview

The Mr. Pen Scientific Calculator is designed for students. It features a two-line display that shows both the input and the result simultaneously. This calculator supports fraction calculations, statistical analysis, and trigonometric functions. Its solar-powered operation ensures long-lasting use, supplemented by a battery. The durable construction makes it suitable for daily use in classrooms. With its interface and functionality, the Mr. Pen Scientific Calculator is a choice for anyone needing a calculating device.

Product Specifications

Display Digits

10+2digits

Display Type

Power Source

Solar Panel & Battery

Number of Functions

240

Memory

-locations

Fractions

Yes

Complex Numbers

Statistics Functions

Yes

Regression Analysis

Unit Conversions

Size & Weight

Weight

4.6 ounces

Hight

0.04 inches

Width

3.15 inches

Depth

6.37 inches

Features

Equation Solver Function

Feature Description

This function allows you to solve for unknown variables in equations directly on the calculator. Instead of manually manipulating equations, you can input the equation and find the solution, saving time and reducing errors, especially useful for complex algebraic problems.

About This Product

This calculator does not have an equation solver function. Users needing this functionality will need to solve equations manually or use a different calculator. This function is useful for solving complex algebraic problems directly on the calculator.

Matrix Calculation Function

Feature Description

This function enables you to perform operations on matrices, such as addition, subtraction, multiplication, and finding determinants and inverses. Useful for linear algebra calculations in subjects like engineering, physics, and computer graphics.

About This Product

This calculator does not have matrix calculation capabilities. Users needing this functionality may need to look at more advanced models designed for linear algebra calculations. This function is useful in engineering, physics, and computer graphics.

Complex Number Calculation Function

Feature Description

This function allows calculations involving complex numbers, including addition, subtraction, multiplication, division, and finding magnitudes and arguments. Simplifies calculations in electrical engineering, quantum mechanics, and other fields involving imaginary numbers.

About This Product

This calculator does not support complex number calculations. Users needing this functionality may need to look at more advanced models designed for electrical engineering or physics applications. This function simplifies calculations in quantum mechanics.

Base-N Calculation Function

Feature Description

This function allows you to perform calculations in different number systems, such as binary, octal, and hexadecimal, in addition to decimal. Useful for computer science and digital electronics, where these number systems are frequently used.

About This Product

The absence of base-N calculation functions means it's less suitable for digital electronics or computer science tasks. Most users will not require this function, but it can be useful in some situations. This function allows calculations in binary, octal, and hexadecimal.

Statistical Calculation Function

Feature Description

This function enables you to perform statistical analysis, including calculating mean, standard deviation, variance, regression, and distributions. Useful for statistics courses, data analysis, and research projects.

About This Product

The inclusion of statistical calculation functions makes this calculator an excellent tool for statistics courses and data analysis projects. It can calculate mean, standard deviation, variance, and more. This function is useful for statistics courses and research projects.

Unit Conversion Function

Feature Description

This function allows you to easily convert between different units of measurement, such as length, mass, volume, and temperature. Saves time and reduces errors when working with different units in physics, chemistry, or engineering problems.

About This Product

This calculator does not have a unit conversion function. Users needing this functionality will need to convert units manually or use a different calculator. This function is useful for quickly converting between different units of measurement.

SHOPSTAFF Rating Score

#14

Ranked #14 out of 56 products in Category

4.1

Overall Rating

The Mr. Pen Scientific Calculator is a basic calculator suitable for simple calculations. It is positioned as an entry-level calculator due to its low price. It is expected to last for a few years with normal use. It is best suited for basic math and science courses.

Display Type and Readability

4.0

Rating Criteria Explanation

The display is the primary interface for a scientific calculator. Consider the type of display (LCD, LED), the number of lines it shows, and the size of the characters. A multi-line display allows you to see both the input expression and the result simultaneously, which is extremely useful for complex calculations. Good contrast and adjustable brightness are also crucial for readability in various lighting conditions. A clear and easy-to-read display minimizes errors and improves the overall user experience, especially during long calculation sessions.

Rating Comments

The widescreen HD display offers good readability with its two-line display, allowing for easy input and result viewing. The contrast is adequate for most lighting conditions, but may struggle in direct sunlight. The 10+2 digit display is sufficient for most calculations.

Functionality and Number of Built-in Functions

4.0

Rating Criteria Explanation

Scientific calculators come with a wide range of built-in functions, including trigonometric functions (sin, cos, tan), logarithmic functions (log, ln), exponential functions, statistical functions, and more. The number of functions and the ease of accessing them are important factors. Make sure the calculator includes the functions you need for your specific applications, whether it's for school, engineering, or scientific research. Look for calculators that offer quick access to commonly used functions through dedicated buttons or clear menu structures. Having enough functions prevents you from needing external resources during critical tasks.

Rating Comments

With 240 built-in functions, this calculator covers a range of mathematical needs, from basic arithmetic to statistical calculations. The functions are accessible, though the menu system could be more intuitive. It lacks some advanced functions.

Calculation Accuracy and Precision

4.5

Rating Criteria Explanation

Accuracy is paramount for any scientific calculator. The calculator should perform calculations with minimal rounding errors and provide results with sufficient precision. Check the calculator's specifications for the number of digits it displays and its internal precision. While most calculators offer acceptable accuracy for everyday use, some models are designed for higher precision, which is essential for demanding scientific and engineering applications. Pay attention to reviews and tests that assess the calculator's accuracy in performing various calculations.

Rating Comments

The calculator provides accuracy in its calculations, minimizing rounding errors for both simple and complex problems. It is suitable for most high school and college-level calculations. It may not be sufficient for advanced scientific or engineering applications.

Ease of Use and Ergonomics

3.5

Rating Criteria Explanation

A scientific calculator should be easy to use, with a well-organized keyboard layout and intuitive menu navigation. Consider the size and spacing of the keys, the tactile feedback they provide, and the overall comfort of holding and using the calculator. A good ergonomic design reduces fatigue and improves accuracy, especially during extended use. Look for calculators with a logical arrangement of functions and clear labeling of keys. Some calculators also offer features like replay functions to review and edit previous calculations easily. A user-friendly design significantly enhances productivity.

Rating Comments

The calculator is easy to use, with well-spaced keys. The menu system is not the most intuitive, requiring some time to learn. The protective hardcover is a nice addition, but can make the calculator bulky. The keys could be more tactile.

Power Source and Battery Life

4.0

Rating Criteria Explanation

Scientific calculators typically use batteries (AAA, AA, or button cells) or solar power, or a combination of both. Consider the type of power source and the expected battery life. A calculator with long battery life is essential for users who frequently use it for extended periods. Solar-powered calculators are a good option for environments with ample light, as they reduce the need for battery replacements. Some calculators also have an auto-power-off feature to conserve battery life when not in use. Hybrid models that combine solar and battery power offer the best of both worlds.

Rating Comments

The combination of solar power and battery backup ensures that the calculator is usually ready for use. The solar panel is efficient in bright light, and the battery provides backup power in low-light conditions. Battery life is adequate for most users.

Durability and Build Quality

4.0

Rating Criteria Explanation

A scientific calculator should be durable enough to withstand everyday use and occasional drops or bumps. Look for calculators made from sturdy materials with a solid construction. A protective cover or case can also help to prevent damage to the display and keys. Consider the environment in which the calculator will be used. If it will be frequently carried in a backpack or used in a harsh environment, a more rugged model is recommended. A durable calculator will last longer and provide a better return on investment.

Rating Comments

The calculator is made from materials that can withstand daily use. The build quality is decent, ensuring reliability and product life. The protective hardcover helps prevent damage to the display and keys. It is not the most rugged calculator.

Manufacturer Reliability and Warranty

3.5

Rating Criteria Explanation

Opting for a reputable manufacturer generally ensures higher product quality, reliability, and better customer support. Established brands often have a proven track record of producing accurate and durable scientific calculators. Additionally, a good warranty provides peace of mind in case of defects or malfunctions. Check the warranty terms and conditions, including the duration of coverage and the process for claiming warranty service. Reading online reviews and customer feedback can also provide valuable insights into the manufacturer's reliability and customer service quality. A reliable manufacturer and warranty support can save you from potential headaches and expenses in the long run.

Rating Comments

Mr. Pen is a known brand, providing reliable products and customer support. The calculator likely comes with a limited warranty, providing peace of mind in case of any defects or malfunctions. It is not as well-known as some other brands.

Cost Performance

5.0

Rating Criteria Explanation

Evaluate the calculator's features and performance relative to its price. A more expensive calculator may offer advanced features and higher accuracy, but it may not be necessary for all users. Determine your specific needs and budget, and then compare the cost-performance ratio of different models. Read reviews and compare specifications to find a calculator that offers the best value for your money. Consider the long-term cost, including the cost of replacing batteries or repairing the calculator. A calculator that provides the essential features you need at a reasonable price represents good cost performance.

Rating Comments

The Mr. Pen Scientific Calculator offers excellent value for its comprehensive feature set and reliable performance. It’s a worthwhile investment for students and anyone needing a basic scientific calculator. The low price makes it a great option.

Brand & Manufacturer Details

Mr. Pen

Mr. Pen is dedicated to providing high-quality and affordable school supplies and tools to help schools in the community.

Considerations

Avoid exposure to extreme temperatures
Keep away from moisture
Do not disassemble
Handle with care to avoid damage

Recommended For

Middle school students
High school students
Anyone needing a basic scientific calculator

Not Recommended For

Engineers
Scientists
Users needing advanced graphing capabilities
Professionals requiring programmable functions

Suitable For

Classroom
Homework
Exams

Not Suitable For

Advanced engineering simulations
High-level statistical analysis
Complex financial modeling

Frequently Asked Questions (FAQ)

Q.Is this calculator suitable for high school students?

A.Yes, the Mr. Pen Scientific Calculator is designed for school, college, and high school use, handling fractions, statistics, and essential scientific functions.

Q.Is this calculator suitable for high school students?

A.Yes, the Mr. Pen Scientific Calculator is designed for school, college, and high school use, handling fractions, statistics, and essential scientific functions.

Q.Does this calculator require batteries?

A.Yes, it requires one LR44 battery (included), but it also has a solar panel for use in bright conditions.

Q.Does this calculator require batteries?

A.Yes, it requires one LR44 battery (included), but it also has a solar panel for use in bright conditions.

Q.Is the display easy to read?

A.The calculator has a 2-line widescreen HD display. However, one staff confirmation noted that the white lettering on light grey keys can be difficult to read in certain lighting conditions. Consider the black key version for better usability.

Q.Is the display easy to read?

Q.Is this calculator durable?

A.It comes with a protective hardcover to prevent scratches and dings. However, a staff confirmation from a teacher indicated that some units had rattling pieces inside, and buttons can sometimes get stuck. But overall staff confirm this is a great product for the price.

Q.Is this calculator durable?

Q.Is this calculator suitable for middle school students?

A.It may be suitable for middle school students, but one middle school teacher noted some quality control issues when buying in bulk.

Q.Is this calculator suitable for middle school students?

A.It may be suitable for middle school students, but one middle school teacher noted some quality control issues when buying in bulk.

SHOPSTAFF Rating Ranking

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Complex Numbers	Yes	Statistics Functions	Yes
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Regression Analysis	-	Unit Conversions	Yes

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4.6Overall Rating

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$16.99(incl. tax)Amazon price as of 2025-09-29

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Display Digits	16 digits	Display Type	LCD
Power Source	Solar Powered	Number of Functions	280
Memory	9 locations	Fractions	Yes
Complex Numbers	Yes	Statistics Functions	Yes
Regression Analysis	Yes	Unit Conversions	Yes

Equation Solver FunctionMatrix Calculation FunctionComplex Number Calculation FunctionBase-N Calculation FunctionStatistical Calculation FunctionUnit Conversion Function

4.6Overall Rating

4.5Display Type and Readability

4.7Functionality and Number of Built-in Functions

4.6Calculation Accuracy and Precision

4.4Ease of Use and Ergonomics

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4.3Durability and Build Quality

4.8Manufacturer Reliability and Warranty

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Display Digits	- digits	Display Type	LCD
Power Source	Battery Powered	Number of Functions	-
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Complex Numbers	No	Statistics Functions	Yes
Regression Analysis	Yes	Unit Conversions	Yes

Equation Solver FunctionMatrix Calculation FunctionComplex Number Calculation FunctionBase-N Calculation FunctionStatistical Calculation FunctionUnit Conversion Function

4.5Overall Rating

4.5Display Type and Readability

4.3Functionality and Number of Built-in Functions

4.7Calculation Accuracy and Precision

4.4Ease of Use and Ergonomics

4.6Power Source and Battery Life

4.5Durability and Build Quality

4.8Manufacturer Reliability and Warranty

4.6Cost Performance

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4.5Overall Rating

4.5Display Type and Readability

4.0Functionality and Number of Built-in Functions

4.5Calculation Accuracy and Precision

4.3Ease of Use and Ergonomics

4.7Power Source and Battery Life

4.5Durability and Build Quality

4.8Manufacturer Reliability and Warranty

4.7Cost Performance

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Mr. Pen Scientific Calculator

Product Overview

Product Images

Product Specifications

Size & Weight

Features

SHOPSTAFF Rating Score

Brand & Manufacturer Details

Considerations

Recommended For

Not Recommended For

Suitable For

Not Suitable For