George Garside Blog

If you find something useful on here, it's probably an accident.

Tutorials for the Casio fx-82ES (standard) and fx-991ES PLUS (silver) calculators. The tutorials provide an introduction to the more advanced features of the calculators.

Casio fx Calculator Tutorials

Frequently Asked Casio fx Calculator Questions

What is Casio's natural display on fx-991ES and fx-82ES?

The natural textbook display is a way of displaying formulae in the closest possible way to handwriting. For example, fractions are displayed vertically. This makes it easy to write and edit formulae naturally without the complicated brackets. It is enabled by default on supporting calculators, including fx-82ES and fx-991ES. You can enable \(\text{MathO}\) mode using \(\color{#A80}{\fbox{SHIFT}\ \fbox{SETUP}}, \fbox{1}\).

How to reset Casio fx-991ES or fx-82ES?

  1. Turn the calculator on with the \(\fbox{ON}\) button. There is no hardware reset button on the back.
  2. \(\color{#A80}{\fbox{SHIFT}}\ \fbox{9}\) to enter Reset. A list of items which can be reset are shown.
  3. \(\fbox{3}\) to select the \(\text{Reset All}\) option.
  4. \(\fbox{=}\) to confirm the reset. The calculator has been reset at this point.
  5. \(\fbox{AC}\) to return to normal calculation, or \(\color{#A80}{\fbox{SHIFT}}\ \fbox{AC}\) to turn the calculator off.

Are the Casio calculators available as Android APK (fx-991ES or fx-82ES)?

There are no Android emulators available for the Casio calculators. You can download the Casio emulator from this site, see below.

Is fx-991ES a programmable calculator?

No, the Casio fx-991ES PLUS is not a programmable calculator. The calculator can solve equations, but it is not programmable. This means the calculator is suitable for many exams, such as A-levels.

Casio fx-ES Emulator Download

If you have any questions with any of the content here, feel free to contact me. The content has been created using the Casio fx-ES emulator to replicate the procedures possible on the actual calculators. The interface is identical to a physical calculator of that model.

You can access the Casio fx-ES emulator download used to create these tutorials by contacting me using the comments below. This is the full emulator download with support for the fx-82ES emulator and fx-991ES PLUS emulator. Post a comment and I will get an email to you.

Use of this emulator is free. If you publish anything using the emulator (such as a screenshot on your website), you must include a (dofollow) link back to this page. Thank you for your support.

Need help?