Texas Instruments 83CML/ILI/U Guidebook - Page 419
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Error Conditions When the TI.83 detects an error, it displays ERR:message and an error menu. Chapter 1 describes the general steps for correcting errors. This table contains each error type, possible causes, and suggestions for correction. Error Type ARCHIVED VAR ARGUMENT BAD GUESS BOUND BREAK DATA TYPE DIM MISMATCH DIVIDE BY 0 Possible Causes and Suggested Remedies A function or instruction is archived and therefore cannot be executed or edited. Use the unarchive command to unarchive the variable before using it. A function or instruction does not have the correct number of arguments. See Appendix A and the appropriate chapter. ¦ In a CALC operation, you specified a Guess that is not between Left Bound and Right Bound. ¦ For the solve( function or the equation solver, you specified a guess that is not between lower and upper. ¦ Your guess and several points around it are undefined. Examine a graph of the function. If the equation has a solution, change the bounds and/or the initial guess. ¦ In a CALC operation or with Select(, you defined Left Bound > Right Bound. ¦ In fMin(, fMax(, solve(, or the equation solver, you entered lower , upper. You pressed the É key to break execution of a program, to halt a DRAW instruction, or to stop evaluation of an expression. You entered a value or variable that is the wrong data type. ¦ For a function (including implied multiplication) or an instruction, you entered an argument that is an invalid data type, such as a complex number where a real number is required. See Appendix A and the appropriate chapter. ¦ In an editor, you entered a type that is not allowed, such as a matrix entered as an element in the stat list editor. See the appropriate chapter. ¦ You attempted to store to an incorrect data type, such as a matrix, to a list. You attempted to perform an operation that references more than one list or matrix, but the dimensions do not match. ¦ You attempted to divide by zero. This error is not returned during graphing. The TI.83 allows for undefined values on a graph. ¦ You attempted a linear regression with a vertical line. General Information B-5
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