Name: Casio Scientific Calculator With 417 Functions, 2Nd Edition - Black
Brand: Fepy
SKU: 70093-PCS
Price: 70.57 AED
Availability: InStock

Question 1

What is the Casio FX991ES Plus and what is it used for?

Accepted Answer

The Casio FX991ES Plus is a scientific calculator with 417 functions designed for scientific, engineering, and statistical calculations. It supports advanced math, statistics, trigonometry, fractions, and more, making it suitable for STEM coursework and professional use.

Question 2

How many functions does it have and what categories are covered?

Accepted Answer

It includes 417 functions across categories such as scientific calculations, statistics, fractions, algebra, trigonometry, logarithms, and complex numbers, enabling a wide range of computations in one device.

Question 3

What does Natural Display mean on this calculator?

Accepted Answer

Natural Display shows equations and expressions in textbook-style formatting, so you can read and verify inputs and results the way they appear in your coursework.

Question 4

Is the FX991ES Plus solar powered, and how does power work?

Accepted Answer

Yes, it is solar-powered with a battery back-up. The solar panel provides energy under light, while the back-up battery ensures continued operation in low-light conditions.

Question 5

What is the multi-line display and how does it help me?

Accepted Answer

The multi-line display lets you view multiple lines of calculations simultaneously, so you can see inputs, intermediate steps, and results side by side to improve accuracy and workflow.

Question 6

What are common use cases for this calculator?

Accepted Answer

Ideal for STEM coursework, engineering problems, statistical analysis, data interpretation, exam preparation, and any scenario requiring reliable scientific calculations with many built-in functions.

Question 7

How do I perform statistics calculations like mean and standard deviation?

Accepted Answer

Enter data into the statistics mode (often via the MODE button), choose the one- or two-variable statistics option, input your data set, and use the statistics functions to compute mean, standard deviation, regression, and probabilities.

Question 8

How do I perform trigonometric and logarithmic calculations?

Accepted Answer

Use the trig keys (sin, cos, tan) with your angle unit set (degrees or radians). For logarithms, use log and ln keys, and combine with exponent and power functions as needed.

Question 9

How do I switch modes and access secondary (SHFT) functions?

Accepted Answer

Use the MODE or SHIFT (SHFT) key to access secondary functions. The SHFT functions are printed above the keys, and MODE lets you switch between calculation modes (e.g., degrees/radians, statistics, etc.).

Question 10

Is this calculator suitable for exams and tests?

Accepted Answer

It is widely used in STEM exams that permit non-CAS scientific calculators. Always verify your specific exam's calculator policy to ensure compliance with allowed features.

Question 11

What about durability and care for the FX991ES Plus?

Accepted Answer

The calculator features a sturdy build designed for regular classroom and field use. To care for it, keep it dry, clean with a soft cloth, and avoid exposing it to heavy impact or moisture.

Question 12

How does this FX991ES Plus compare to other Casio models available on Fepy?

Accepted Answer

Compared to the Casio FX991EX ClassWiz, the FX991EX typically offers more advanced features and a higher-resolution display, while still covering core scientific and statistical functions. The FX115ES Plus provides a similar scientific feature set at a potentially lower price, with a more traditional layout. For direct product options on Fepy, you can explore these alternatives here: FX991EX ClassWiz: https://fepy.com/product/casio-fx991ex-classwiz-scientific-calculator and FX115ES Plus: https://fepy.com/product/casio-fx115es-plus-scientific-calculator

Casio Scientific Calculator With 417 Functions, 2Nd Edition - Black

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