Solution 11579: Calculating Logs of Bases Other Than 10 on the TI …
https://education.ti.com/en/customer-support/knowledge-base/ti-83-84-plus-family/product-usage/11579
How do I calculate logs of bases other than 10 on the TI-83 Plus family of graphing calculators? Press [LOG], input 160, then press [ ) ]. Press [÷]. Press [LOG], input 4, then press [ ) ]. Press [ENTER] to complete the calculation.
Press [LOG], input 160, then press [ ) ].
Press [÷].
Press [LOG], input 4, then press [ ) ].
Press [ENTER] to complete the calculation.
DA: 20 PA: 56 MOZ Rank: 10