## How do you find the difference in logs?

The rule when you divide two values with the same base is to subtract the exponents. Therefore, the rule for division is to subtract the logarithms. The log of a quotient is the difference of the logs.

## What is the difference between a log and a square root?

In addition to root-taking, another way of asking the power question backwards is “What exponent (or power) must you raise a certain base number to in order to get some specified number?” The distinction between roots and logarithms is this: for root-taking, you specify the power and ask for the base; for logarithms.

**Can PhotoMath do logs?**

“PhotoMath currently supports basic arithmetics, fractions, decimal numbers, linear equations and several functions like logarithms.

**What is a one log difference?**

A log reduction takes the power in the opposite direction. For example, a log reduction of 1 is equivalent to a 10-fold reduction or, to put it another way, moving down one decimal place or a 90% reduction.

### What is the log first difference?

First difference of LOG = percentage change: When used in conjunction with differencing, logging converts absolute differences into relative (i.e., percentage) differences. Thus, the series DIFF(LOG(Y)) represents the percentage change in Y from period to period.

### How do you find the difference in logs in R?

The log difference function is useful for making non-stationary data stationary and has some other useful properties. We can calculate the log difference in R by simply combining the log() and diff() functions.

**Is LOGX 2 a 2logx?**

No, log(x²) = 2log(x). Remember your rules for exponents, and remember that logs are exponents.

**What happens when a log is squared?**

Log squared is simply the square of the value of log. The exponent, 2, cannot be brought down and multiplied with the log term.