Casio fx-CG50 field manual for IB Math

Where to find the symbols, templates and shortcuts that are easiest to lose. Almost all of them are printed on the keypad in small yellow type above a key: press , then the key beneath the label.

Symbols and templates

• Fraction template ​□□​: its own key,
• ​√x:   ·  ​n√x: 
• ​π: 
• ​ex:   ·  ​10x: 
• ​×10n:  — never type ×10^ by hand
• ​sin−1,  ​cos−1,  ​tan−1:  / /
• The = for solver equations:
• Braces { } for lists: and  ·  brackets [ ] for matrices: and
• The imaginary unit ​i:  , once Complex Mode is a+bi
• The negative sign, which is rather than the minus key

Answers and converting

• The previous answer Ans:
• Exact form ↔ decimal:
• Store a value in a letter: , then and the letter
• Edit an earlier entry: to it, or to open it, change it, — it and every line below recalculate

Set up and escape routes

• Every app’s settings (SET UP):
• Back one screen:  ·  back to the app’s start screen (QUIT):
• Insert rather than overtype (INS):
• Type several letters (A-LOCK):
• Every command A–Z (CATALOG):
• Switch off:

Behind the soft keys

• On a drawn graph — Zoom:  ·  V-Window:  ·  G-Solve (roots, maxima, intersections):
• Trace along a drawn graph: on its soft-key row
• Derivative template: (MATH) (d/dx)  ·  integral: (MATH) (∫dx), in Run-Matrix
• Solve any equation (SolveN): (CALC)
• Matrices away from their editor: (MAT/VCT)
• When a soft menu vanishes after , reopen it with