Where we will use logarithms in real life ?

Answer 1

Okay but i don't understand why we learn these and they confuse me about mathematics. What is the point of finding the logarithms of 5 in base 7? Can you please help me out.

Answer 2

Computer Science or Cyber Security, cryptography is one of them

Answer 3

before scientific calculators, celestial navigation calculations were carried out using logaritmic tables.

Answer 4

and where we will use tan & cot ?????😁😁😁😁😁

Answer 5

In regression analysis the natural logarithm is for example used to change the interpretation....if you take the natural log (ln) of the data of the dependent variable then you can say after estimating the slope coefficients of the independent variables that a one unit increase in any of those independent variables will change the outcome variable (of which you took the log ) by (100*slopecoefficient of that independent variable)%. If you take the ln of only the independent vars then you can say that a one percent increase in one of the independent variables will change the outcome variable by (slopecoefficientofthatindependentvariable/100).
If you take the log of dependent and independent variables then after regression you can say that a 1% increase in one of the independent variables will change the outcome variable by 100*coefficient%. Additonally sometimes a nonlinear relationship between outcome and independent variables can be enforced by taking ln of all variables (this is necessary since most regressions assume mathematically a linear relationship). So much to one use of the natural log. For why this works one could look it up in an Econometrics Book: i.e. "Introductory Econometrics: A Modern Approach" by Woolridge

Answer 6

See this code by The Other One
https://code.sololearn.com/Wc5q92DdqH0H/?ref=app
The fps slider implements logarithms.

Answer 7

there are many logarithmic aspects of nature. for example sound level calculatlons are logarithmic. math is not made up stuff. math is to define what's already in the nature.

Answer 8

its just meant to make calculations A LOT easier.

Answer 9

Mainly base 10 and base e is used, rest are useful in more complex scientific researches, but we have computers for that.There is no point in learning those unless you are in some sort of scientific/mathematical field , or you wanna run for marks.