Question

how to find the logarithm of a number
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Answer 1

Type a logarithm in Microsoft Word. Open the document and place the cursor at the point where you want to insert the logarithm. Type "log," followed by the subscript icon given under the "Font" category of the "Home" tab. Type the base of the logarithm in subscript; for instance, "2."

Answer 2

if you're talking about maths ...then

logarithmic function is the inverse of exponential function

for example

y=e^x

logy=xloge

logy =x

x=log y