Texas Instruments TI-nspire CAS (Computer Algebra System) Handheld Electronic Calculator | Smithsonian Institution
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Texas Instruments Nspire CX II CAS Graphing Calculator - Rechargeable, Computer Algebra System (CAS) - Battery Powered - 2" x 7.3" x 11.8" - Gray - 1 Each - Bluebay Office, Inc.
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