Texas Instruments TI-80 User Manual - Page 222

INCREMENT INVALID INVALID DIM LABEL MEMORY MODE NEST LEVEL OVERFLOW ¦ The increment in SEQ( is 0 or has the wrong sign. This error does not occur during graphing. The TI-80 allows for undefined values on a graph. ¦ The increment in FOR( is 0 or has the wrong sign. You are attempting to reference a variable or use a function in a place where it is not valid. For example, Yn cannot reference Y, XMIN, @X, or TBLMIN. ¦ The dimension of the argument is not appropriate for the operation. ¦ List element dimensions must be integers between 1 and 99; for example, L1(100) will cause an error. The label in the GOTO instruction is not defined with a LBL instruction in the program. ¦ There is insufficient memory in which to perform the desired command. You must delete item(s) from memory (Chapter 12) before executing this command. ¦ Using an IF/THEN or FOR( with a GOTO that branches out of the loop can also cause this error because the END statement that terminates the loop is never reached. You are attempting a úSIMP in AUTOSIMP mode. This error occurs when any nested combination of function evaluation, NDERIV( or SEQ( exceeds 5 levels. You are attempting to enter, or you have calculated, a number that is beyond the range of the calculator. This error does not occur during graphing. The TI-80 allows for undefined values on a graph. B-12 Service and Warranty Information