This was a weird issue I experienced with my Texas Instruments BA II Plus calculator that was resetting the calculator when trying to compute the interest rate of a TVM calculation.
It seems that a low battery was at fault, and on inspection was showing a voltage of 2.8V instead of above 3V. I thought it was worth posting since I couldn’t find any solutions online, and this is the first time I have heard of a low battery impeding a calculation.
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