Texas Instruments TI-80 User Manual - Page 221

Error Conditions When the TI.80 detects an error, it displays ERR:message and the error menu. The general procedure for correcting errors is described on page 1.22. The error messages, their possible causes, and suggestions for correction are shown below. ARGUMENT BREAK DATA TYPE DIM MISMATCH DOMAIN A function or instruction does not have the correct number of arguments. See Appendix A and the appropriate chapter. You have pressed the ´ key to break execution of a program, halt a Draw instruction, or stop evaluation of an expression. You have entered a value or variable that is the wrong data type. ¦ A function (including implied multiplication) or an instruction has an argument that is an invalid data type; for example, a list where a real number is required. See Appendix A and the appropriate chapter. ¦ You are attempting to store to an incorrect data type; for example, a list to a real variable. ¦ In function graphing or parametric graphing, you have generated a list result rather than a single value; for example, attempting to graph Yã={1,2,3}×X. You are attempting to perform an operation that uses more than one list, but the dimensions do not match. Typically, this occurs when the value of an argument does not fall within a specified range. ¦ You are attempting to divide by zero. ¦ You are attempting a logarithmic or power regression with a LX or an exponential or power regression with a LY. ¦ A zero value for ε for NDERIV( will result in this error. This error does not occur during graphing because the TI-80 allows for undefined values on a graph. Service and Warranty Information B-11