Casio 9860 Graphic Calculator Self‑Guided Instructions

About this manual

This self‑guided instruction manual walks users through the RUN mode of the Casio fx‑9860 graphic calculator, covering input methods, editing, and the SET UP menu. It explains how to navigate screens, change settings, and perform calculations using both Line and Math input modes.

Key functions such as angle conversion, fraction/decimal display, the ANS key, probability calculations, random number generation, and derivative operations are described with screen‑shot style instructions, helping students and teachers use the calculator efficiently for scientific and mathematical tasks.

What's inside

• RUN Mode Overview
• Using the Scientific Calculator Mode (RUN)
• Editing operations in Line mode
• The SET UP menu
• Scientific Notation and Display options
• Fraction Result settings
• The ANS key
• Compound Interest with ANS
• Time / Deg‑Min‑Sec conversion
• Probability and Random Numbers

Specifications

Frequently asked questions

How do you change the input mode to Math?

Press SET UP (SHIFT MENU), move the cursor to Input Mode and select Math, then press F1.

How can the ANS key be used to continue a calculation?

After obtaining a result, press the ANS key (SHIFT (-)) to recall the previous answer and use it in a new expression, e.g., 2004.998 ‑ Ans.

How can you generate random numbers on the calculator?

Open the Probability suite with OPTN → PROB, then press the Ran# (F4) key repeatedly and EXE to produce random numbers between 0 and 1.