Hello I have a TI-84 Plus calculator and during my math class we were doing log functions on the calculator and I was met with the err "Argument". I don't know what this means, but from what I've heard my calculator is missing the required software to run a log. I should clarify that when I say log I mean a problem that would be put into a calculator as "log(2, 4)" and it will come up with "ERR:ARGUMENT" rather than the answer of 2. Does anyone know how, or where I can go to get my calculator to work with the log function? I have a cable to connect it to my laptop if there is some program I must install on it. Thanks!