Question

How to calculate log and antilog...

Answer 1

you see this in lograthmic book and the method is forexample (now to find mantesa and see 21 IN colum 0 which is7787)

Answer 2

actually if you got a question like (87.5)
then write like this
n log=87.5
n=log87.5 now check the log table first see the 87 in 5=9420
n=(1+.9420) When we see the number 87.5 then in scientific
n=(1.9420) situation the point which point n between like 87.5 then it becomes 8.75×10raise to power 1 and now look in above 3rd
step
then taking antilog
n=antilog 1.9420
characteristic is 1
mantisa is .9420 check .94 in 2 of 0
= 8750 now characteristics is 1 ...add 1 in characteristics so it is 2 so
this means that you should set point in this number after two
number so
=87.50 is antilog