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Texas Instruments TI-89 Tip List

Texas Instruments TI-89
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Contents
2-16[2.24] Infinity^0 evaluates to 1
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2-15[2.23] Try comDenom() for faster partial factoring
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2-13[2.22] Methods for some CAS functions
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2-12[2.21] Differentiation and integration fail with part()
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2-12[2.20] factor() with respect to list elements
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2-11[2.19] Restrict function arguments to integers
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2-10[2.18] Delay evaluation to simplify expressions
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2-10[2.17] Use a 'clean' or empty folder for CAS operations
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2-9[2.16] Find partial fractions with expand()
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2-9[2.15] Use change of variable in limits of when() functions
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2-8[2.14] Define functions that CAS can manipulate
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2-8[2.13] Try comDenom() to find limits
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2-7[2.12] Testing equivalence of symbolic expressions
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2-6[2.11] Force getnum() and getdenom() to return correct results with part()
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2-5[2.10] CAS square root simplification limitations
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2-4[2.9] Find more symbolic integrals, faster, with Real mode and constraints
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2-4[2.8] Use expand() with respect to variable for faster results
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2-4[2.7] Use when() in integration in AMS 2.03
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2-3[2.6] CAS uses common convention for integral of x^n
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2-3[2.5] Try manual simplification to improve symbolic integration
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2-3[2.4] Use Exact mode to ensure Limit() success
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2-2[2.3] Use when() for absolute values in integrals
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2-1[2.2] Try constraints or solve() in symbolic equality tests
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2-1[2.1] Force complete simplification with repeated evaluation
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2.0 Computer Algebra System (CAS) tips
1-51[1.23] Ray Kremer interview on TI Student Features page
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1-49[1.22] TI Calc-Con '02 trip reports
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1-45[1.21] TI-89 Internal photographs
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1-40[1.20] TI-92 Plus internal photographs
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1-38[1.19] Kraftwerk's Pocket Calculator song
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1-29[1.18] Myth and legend from the TI discussion groups
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1-28[1.17] Quick tips
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1-20[1.16] Use your TI-89 / TI-92 Plus as an on-screen ruler and protractor
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1-19[1.15] Permission to copy TI guidebooks
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1-17[1.14] Cleaning a calculator after spills and other accidents
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1-17[1.13] Developer's guide describes calculator internal operation
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1-16[1.12] Processor clock speed and battery voltage
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1-16[1.11] "Low Battery" indication voltages
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1-12[1.10] Patents for TI-89 and TI-92+
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1-10[1.9] Physical characteristics of TI-89 and TI-92 Plus
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1-10[1.8] Make a protective plastic 'skin' for your calculator
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1-9[1.7] Undocumented error codes
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1-9[1.6] Manual error for SetMode() codes for Angle modes
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1-7[1.5] Creating picture variables on a PC
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1-3[1.4] Importing and exporting PC data with the TI-89 / TI-92 Plus
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1-2[1.3] Alphabetic list of reserved variable names
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1-2[1.2] TI92+ manual error for Logistic regression equation
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1-1[1.1] Discussion Group etiquette
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1.0 Miscellaneous tips
0-10
Revision record: 9.0 to 10.0 .......................................................
0-9
Contributors ....................................................................
0 - 3

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Texas Instruments TI-89 Specifications

General IconGeneral
Display size (HxV)100 x 160 mm
Memory type639K FLASH ROM, 188K bytes RAM
Compatible operating systemsOperating System 2.09
Battery typeAAA

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