How to Enter a Subscript on the TI-83

How to Enter a Subscript on the TI-83
••• wutwhanfoto/iStock/GettyImages

A subscript is used to indicate the base of a logarithm. For instance, common logs have a base of 10 while natural logs have a base of e. Unfortunately, the TI-83 graphing calculator does not support subscripts. That, however, does not mean you cannot solve such a log. The key lies in using the "Change of Base Property" to turn such a log into a natural or common log.

    Write your log base a of b as common log b divided by common log a: log_a(b) = log(b)/log(a). For example, log_2(100) would turn into log(100)/log(2).

    Submit the first log by pressing the "LOG" button, entering the value of b, pressing the right parenthesis key and pressing the division key.

    Finish the calculation by pressing the "LOG" button, entering the value of a, pressing the right parenthesis key and pressing the "ENTER" button.

Related Articles

How to Use the Ti84 Calculator to Add Logs
How to Use Log on a TI-83
How to Cancel a Natural Log
How to Convert Ln to Log 10
How to Do Powers in Math
How to Divide Using Logarithms
How to Do Fractions on a TI-30X IIS
How to Make a Negative Sign With the TI-84 Plus
How to Convert Pounds Per Square Foot to PSI
How to Use the Ti84 Calculator to Add Logs
How to Write an Equivalent Fraction With a Given Denominator
How to: Improper Fractions Into Proper Fractions
How to Evaluate Logarithms With Square Root Bases
How to Divide Ratios
How to Calculate Function From Ordered Pairs
How to Use a Calculator for Trigonometry
How to Divide Rational Numbers
How to Calculate KVA to MVA

Dont Go!

We Have More Great Sciencing Articles!