The conversation between human and AI assistant.
What does ERR: INVALID DIM mean on a TI-84?
Is there a way to prevent this error from occurring in the first place?
Yes, one way to prevent this error is to make sure you understand the rules for matrix multiplication and other mathematical operations you are performing on the calculator. Also, double-checking your inputs can help catch any potential errors before they cause the ERR:INVALID DIM message to appear.