Amazon Texas Instruments  
17-09-2017 08:30 am
Texas Instruments TI-89 Advanced Graphing Calculator
Over 500 KB memory for storing functions, programs, and data
Pretty Print technology displays mathematical expressions as they appear in textbooks
High-resolution display with split-screen views
Computes symbolic solutions to differential equations
Input/output port and cable, also supports optional TI-GRAPH LINK
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