Archive for March, 2009

Easy Log function on a TI-89 Titanium

I know this is outside of the normal topics discussed on this site but I felt a serious need inform others about hidden functionality on the Texas Instruments TI-89.

Recently in my math class I was required to use the log function on my TI-89 Titanium. I couldn’t find it except by using the catalog. I read the manual and searched on the internet, I couldn’t find a better method, I in fact fount a lot of worse methods. So sitting in class I started pushing the alternate function keys and pressing all the keys without their alternate function listed. The calculator does in fact have a quick key for the Log function. Diamond & 7

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