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how to find log and antilog

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From Wikipedia

Web log analysis software

Web log analysis software (also called a web log analyzer) is a simple kind of Web analytics software that parses a log file from a web server, and based on the values contained in the log file, derives indicators about who, when, and how a web server is visited. Usually reports are generated from the log files immediately, but the log files can alternatively be parsed to a database and reports generated on demand.

Features supported by log analysis packages may include "hit filters", which use pattern matching to examine selected log data.

Common Indicators

  • Number of visits and number of unique visitors
  • Visits duration and last visits
  • Authenticated users, and last authenticated visits
  • Days of week and rush hours
  • Domains/countries of host's visitors
  • Hosts list
  • Number total pageviews
  • Most viewed, entry and exit pages
  • Files type
  • OS used
  • Browsers used
  • Robots
  • HTTP referrer
  • Search engines, key phrases and keywords used to find the analyzed web site
  • HTTP errors
  • Some of the log analyzers also report on who's on the site, conversion tracking, visit time and page navigation.

From Yahoo Answers

Question:How come there's no ANTILOG on a scientific calculator? For example, if I use a printed out LOGARITHM TABLE then I can look up the logs and add/subtract them, then find out the actual number by looking up the reverse of the logarithm. But I only see the LOG button on calculators and never the anti log or reverse log (unlike Sin and Sin-1, etc.). Why is this? Hits palm on head (palm, not Palm :-) You're absolutely right! Sheesh. I totally just overlooked that. Thanks. I use RPN as well (can't stand so-called algebraic). All my real and iPhone/iPad/Mac calculators are RPN :-) Thanks!

Answers:Depends on the calculator. The Windows calculator can do base10 anti-log of x by entering: x, inverse, log. My HP just does the same anti-log by entering: 10, x, y^x (it's an RPN calculator). Since space is limited on a calculator, the designers must optimize for the functions they expect to be most useful. I guess since y^x or x^y function is really, really useful and can return the same result, some opt not to add redundant inverse log or anti-log function for the benefit of people who don't quite understand what a log is.

Question:In my book it is given that above is equal to log 4 to base 2. How come. I have proved log a log b = log ab This stuff simple dives over me. I mean can u prove anythin like that?

Answers:It appears that they used the "chage of base" formula that says the log a to the base b = (log a) / (log b) so you can rewrite this problem as (log 4) / (log 5) * (log 5) / (log 2) when you multiply, the log 5 on top will cancel with the log 5 on bottom leaving (log 4) / (log 2). if you take that answer and use the change of base formula again, you will get log 4 with a base of 2 which is actually just 2. I hope this helps and wasn't too confusing, Rousey

Question:Given f(x)=log (base 2) (-x+5) and g(x)=-x Find (f+g)(x) y=log(base 2)(-x+5)-x I don't know how to turn that into an equation from which I can graph

Answers://// log(2)(-x+5)-log(2)2^(-x) =log(2)(-x+5)/2^x

Question:log (3) x How do i find these 2 points outside of using a calculator

Answers:So the equation is log (3) x More specifically y = log (3) x So if you rewrite the equation to... 3^y = x it'll make it SOO much easier for us.. From that, we can plug in any number we want for y, and we will get a value for x, and those values are on the function. But.. if you want to make your life easier, juse use 1,2 for y... So if we plug in 1 for y, we get 3^1 which is just 3 so the cordinate (3,1) is on the function Plug in 2 for y, we get 3^2, which is 9 so the cordinate (2,9) is on the function. ^^

From Youtube

Exponents & Logs: Graphing Functions :www.mindbites.com This 64 minute exponents & logarithms lesson studies the graphs of the exponential function and the inverse of the exponential function, which is the logarithm: This lesson will show you how to: - graph exponential functions and summarize the characteristics of the graphs - find the inverse of the exponential function - graph logarithmic functions and summarize the characteristics of the graphs - understand the x and y intercepts, an asymptote, domain & range, growth and decay functions, and the reflection property Sample question: Given the exponential function y = 2^x, write its inverse in exponential form On the same grid, draw the graphs of y = 2^x and its inverse x = 2^y. Show the line of reflection y = x This lesson contains explanations of the concepts and 13 example questions with step by step solutions plus 3 interactive review questions with solutions. Lesson that will help you with the fundamentals of this lesson: - 400 Solving Exponential Equations (www.mindbites.com

Exponents & Logs: Working With Logarithms :www.mindbites.com This 67 minute exponents & logarithms lesson begins with the relationship between exponents and logarithms and focuses on solving for an unknown in a logarithmic equation and learning to evaluate logarithms with different bases: This lesson will show you how to: - change from exponential form to logarithmic form - change from logarithmic form to exponential form - identify and use a common log - identify and use a natural log (ln, base e) - solve for unknowns in a logarithmic equation - evaluate logarithms, for example log base 7(49 cube root 7) + log base 27(3^3 times 81 ^1/2) - find the number positi0n and the base position Thislesson contains explanations of the concepts and 32 example questions with step by step solutions plus 5 interactive review questions with solutions. Lessons that will help you with the fundamentals of this lesson include: - 115 The 5 Basic Exponent Laws (www.mindbites.com - 165 The Zero Negative & Rational Exponent (www.mindbites.com - 205 Solving Systems of Linear Equations (www.mindbites.com - 400 Solving Exponential Equations (www.mindbites.com - 405 Graphing Exponential & Logarithmic Functions (www.mindbites.com