# Log, Antilog Table [1-100] PDF

Hi in this I am going to share with you all one of the best and most important Logarithms and Antilogarithm Table. you can download the Log Table PDF with the Antilogarithm chart.

In mathematics, the logarithm table is used to find the value of the logarithmic function. The simplest way to find the value of the given logarithmic function is by using the Logarithm table. Here the definition of the logarithmic function and procedure to use the logarithm table are given in detail.

log Table used in physics chemistry and mathematics and many subjects.

## Log & Antilog Table Chart

### How to Use log Table

1. Find the Value of log(19.67)

Step 1: first identify the Characteristic Part and Mantissa part of the given algorithm. we want to find the base 10 log of 19.67 value.

Characteristic Part = 19

Mantissa part = 67

Step 2: 19 lies between 10 and 99 so its log will lie between 1.

or just use (total characteristic digit-1) = (2-1) = 1

Step 3: Now look at the logarithm table using row number 19 to refer to column number 6 whose value will be 2923.

Step 4: Now check the mean column no 7 whose value will be 16.

Now just add both columns no 6 and 7 value

2923 + 16 = 2939

the final answer value will be 1.2939

log(19.67) = 1.2939

2. Find the value of log(1563)

Total Digit is given = 4

15 = Check the Value in the first column

6 column = 1931

3 column = 8

or just use (total characteristic digit-1) = (4-1) = 3

log(1563) = 3.1939

3. Find the value of log(15.63)

Total Digit is given = 2

15 = Check the Value in the first column

6 column = 1931

3 column = 8

or just use (total characteristic digit-1) = (1-1) = 0

log(15.63) = 1.1939

4. Find the value of log(1.563)

Total Digit is given = 1

15 = Check the Value in the first column

6 column = 1931

3 column = 8

or just use (total characteristic digit-1) = (1-1) = 0

log(1.563) = 0.1939

### Property of Log

1. logx(ab) = logxa+ logxb [Product Rule]
2. logx(a/b) = logxa – logxb [Quotients Rule]
3. loga x = logx * logb
4. logb x = logx * logb
5. logb x= n logb x [Power Rule]
6. log(a+b)=loga+b/(2.42×a)

Question: Find the value of log(737) using Property of Log?

log(mn)=logm+logn

=log(737)=log(7.37×10 2 )

=log(7.37)+log(10 2 ) by using

=log(7.37)+2[log10 n =n]

=log(7+0.37)+2

Now applying the formula log(a+b)=loga+b/(2.42×a);

=log(7)+0.37/(2.42×7)+2

it comes out to be 2.867 which is the log value for 737.