Texas Instruments TI-89 User Manual - Page 918

Error Number Description 610 Invalid variable name in a Local statement 620 Invalid variable or function name 630 Invalid variable reference 640 Invalid vector syntax 650 Link transmission A transmission between two units was not completed. Verify that the connecting cable is connected firmly to both units. 665 Matrix not diagonalizable 670 Memory 673 The calculation required more memory than was available at that time. If you get this error when you run a large program, you may need to break the program into separate, smaller programs or functions (where one program or function calls another). 680 Missing ( 690 Missing ) 700 Missing " 710 Missing ] 720 Missing } 730 Missing start or end of block syntax 740 Missing Then in the If..EndIf block 750 Name is not a function or program 765 No functions selected 780 No solution found Using the interactive math features (F5:Math) in the Graph application can give this error. For example, if you attempt to find an inflection point of the parabola y1(x)=x2, which does not exist, this error will be displayed. 790 Non-algebraic variable in expression If a is the name of a PIC, GDB, MAC, FIG, etc., a+1 is invalid. Use a different variable name in the expression or delete the variable. 800 Non-real result For example, if the unit is in the REAL setting of the Complex Format mode, ln(-2) is invalid. 810 Not enough memory to save current variable. Please delete unneeded variables on the Var-Link screen and re-open editor as current OR reopen editor and use F1 8 to clear editor. This error message is caused by very low memory conditions inside the Data/Matrix Editor. 830 Overflow 840 Plot setup Appendix B: Technical Reference 919