The difference between Casio FX-991EX and Casio FX-991CW

Summary

This video compares two scientific calculators, CW and EX, highlighting their similarities and differences. Both can perform a wide range of functions like statistical calculations, solving equations, and matrix operations. The CW calculator stands out for its simpler interface and unique features like rolling dice and flipping coins, while the EX offers faster calculations for complex functions but requires more keystrokes due to its deeper menu system. Ultimately, the speaker prefers the CW for its user-friendly design and ease of use, recommending it for general users, while suggesting the EX only for those needing faster complex calculations.

Takeaways

• 😀 The CW and EX calculators are capable of performing similar mathematical functions, but the CW model offers additional features like a math box for rolling dice and flipping coins.
• 😀 The EX calculator has a more complex and deeper menu system, requiring more keystrokes to access various functions.
• 😀 The CW calculator is praised for its user-friendly interface and simpler design, which allows users to access features more quickly.
• 😀 Both calculators offer advanced functions such as solving polynomials, simultaneous equations, and performing matrix operations.
• 😀 The EX calculator performs integral and derivative calculations faster than the CW model.
• 😀 Despite its speed, the EX calculator's interface is seen as cumbersome and less intuitive due to the need for multiple key presses to access functions.
• 😀 The reviewer recommends the CW model for its simplicity, fewer keystrokes, and better user experience for everyday use.
• 😀 For users who prioritize speed, particularly in integral calculations, the EX calculator might be a better choice, though the difference in performance is minimal.
• 😀 The CW calculator’s build quality and layout are considered superior, with a cleaner, more appealing design compared to the EX calculator, which feels cheaper.
• 😀 The reviewer advises against upgrading to the EX model if the CW calculator already meets your needs, emphasizing that the key functions are identical across both models.

Q & A

What is the main focus of the video?

The video compares two calculators, the CW and EX models, highlighting their features and differences, and provides a recommendation on which one is better.

What is the key difference between the CW and EX calculators?

The key difference is that the CW model includes a math box feature for rolling dice and tossing coins, which the EX model does not have.

What functions can both calculators perform?

Both calculators can perform basic calculations, statistical calculations, polynomial equations, simultaneous equations, matrix operations, vector calculations, and complex number calculations, among others.

How do the interfaces of the two calculators differ?

The CW model has a more straightforward interface with dedicated function keys, while the EX model features a menu-based system where many functions are hidden under multiple key presses.

Which calculator has a faster response for certain operations?

The EX calculator is faster for derivative and integral calculations due to its direct input method, while the CW model requires more key presses to perform similar functions.

What is the advantage of the CW calculator's interface?

The CW model's interface is more efficient for frequent use, as it allows users to access functions directly without deep menu navigation.

What are the usability issues with the EX calculator?

The EX calculator requires multiple key presses for simple tasks, which can be cumbersome and less efficient compared to the CW model.

How does the CW calculator handle display settings?

The CW calculator allows for more flexible settings, such as switching between rectangular and polar coordinates for certain calculations.

Why is the CW calculator preferred for exams?

The CW calculator's layout and faster access to functions make it more suitable for exams, where quick calculations are important and multiple key presses could slow down the user.

What is the price difference between the two calculators?

The CW calculator is priced at around 130 Canadian dollars, but it's only available in regions like India, as it's not yet released in the US, Canada, or Europe.