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The actual calculations to get a logarithm are quite complicated; in most cases you are better off if you look the logarithm up in tables, or use a scientific calculator.
It is often labeled as x^2 , or x2.
Logarithm tables help you work with logarithms without using a calculator. Calculating a logarithm can be a long process. A table eliminates the need to perform extra math. If you need a specific logarithm, you simply look it up. The calculator was invented in the 1970's. Before that, people used slide rules or tables of logarithms. Using the tables of logarithms, you could perform multiplication, division, find roots or powers - and do all of that fairly easily.
look for the A B/C button and press the first number, then the button then the second
Look for a reset button on the back of your calculator,(works for ti30xIIs) or look in manual how to clean ram mem.
Look at the bottom of the calculator. There is a button that looks like this (-). Press that button and then press the number you want to be negative and you have a negative number. It's not as hard as you think:)
What do i look like a calculator? :/
log(0.5) = -0.3010299957
yes it called a carrot look at the number 6 and push shift and the six button
On the common Texas Instrument (TI) it looks like a fraction with a square instead of a number for the denominator and numerator. If you cannot find that button you can also put the fraction as division inside parenthesis for example 1 half could be put in as (1/2)
You look the number up in a table.Example:Find the logarithm of 511From a table I see that numbers are only listed from 1.00 to 9.99I look up 5.11 and know that I have to multiply that by 100 or 102 to get my original value, which is equivalent to adding 2 to the table value.The table gives me 0.7084209 for the logarithm for 5.11The logarithm of 511 is thus 2.7084209For numbers less than 1 the logarithm will be negative!Negative numbers do have logarithms!