Keypad, modes, display, memory, errors and settings.
Official reference · Edition 2026
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Keep every formula.
The complete CT-500 PRO guide, checked against the app itself and designed to move from first keypress to advanced mathematics.
Searchable text Print-ready A4 62 pages
CALCIXA · TRUE-FORM MATH
CT-500 PRO
User Manual &
Formula Handbook
Algebra through calculus, statistics, physics and chemistry.
40 CODATA constants and 40 practical unit conversions.
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