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- DictionaryLog/lôɡ/
noun
- 1. a part of the trunk or a large branch of a tree that has fallen or been cut off: "she tripped over a fallen log"
- 2. an official record of events during the voyage of a ship or aircraft: "a ship's log"
verb
- 1. enter (an incident or fact) in the log of a ship or aircraft or in another systematic record: "the incident has to be logged"
- 2. cut down (an area of forest) in order to exploit the timber commercially.
Learn the various meanings and uses of the word log, from a piece of wood to a record of events. See synonyms, examples, etymology, and related words for log.
Learn the meaning of log as a noun and a verb in English, with examples of different contexts and collocations. Find out how to pronounce log and how to use it in business, academic and American English.
Learn what logarithms are and how to evaluate them. See the definition, examples, and special cases of common and natural logarithms.
- I didn't get much from the explanation of the challenge problem or 3 (1/9) for the logarithmOne exponent rule is that b^-n=1/b^n. Thus for log3(1/9) you are solving 3^x=1/9. Since 3^2=9, 3^-2=1/9 and there's your answer, -2.
- How about *log base-2 of -8=3*? Is it therefore "_defined_"? I thought it that way because it can be...Hey Ian John P. Alberba, When we think about the case/situation you have presented, it can pass as _defined_. The only problem is that if instead o...
- How in the world do the negative exponents work? I understand the concept with positive numbers but ...Negative exponents are a way of writing powers of fractions or decimals without using a fraction or decimal. They tell us how many times to divide...
- How do you evaluate logarithms using a calculator?A scientific calculator generally always has an ln (natural logarithm, or log base e) key. From the change of base theorem, log base a of b = (ln b...
- where are logarithms used in real lifeLogarithms are used most often in scientific fields, especially in chemistry (in my personal experience). They're often used to calculate half-live...
- what is the need of log ? like we already have exponents , so why log too ?I gave this example elsewhere too, but I think it fits here too. Say you want to go shopping and you don't have a personal vehicle. What would you...
- If we have a question of log y (4) then y which can be any base equal to 4 can have 2 answers (2) an...The base of any logarithm must be greater than 0 and not = 1. If the value is not greater than 0, the logarithmic graph would not be continues and...
- log1(1) have two answers? it can be 1 and also 0. log1(1)=1 -> 1^1=1 log1(1)=0 -> 1^0=1 so log1(1)=1...Actually, there would be an infinite amount of answers. 1^2, 1^3, etc. are all equal to 1 too. We don’t really define a log with base 1 because no...
- I didn't get the part where you said logarithms can't b can't be negative. i mean if we have negativ...Logarithms are undefined for base 1 because there exist no real power that we could raise one to that would give us a number other than 1. In other...
- why isn't log(-8) with a base of -2 equal to 3?Even though technically that is correct as an exponential, as a logarithm it is undefined. You cannot have a negative base in a logarithm, and here...
v. t. e. In mathematics, the logarithm is the inverse function to exponentiation. That means that the logarithm of a number x to the base b is the exponent to which b must be raised to produce x. For example, since 1000 = 103, the logarithm base of 1000 is 3, or log10 (1000) = 3.
verb (used with object) , logged, log·ging. to cut (trees) into logs: The villagers logged pine trees for fuel. to cut down the trees or timber on (land): We logged the entire area in a week. to enter in a logbook or record; keep a record of: While at camp I logged each day’s events in a journal.
Learn how to use the product, quotient, and power rules of logarithms to rewrite and simplify expressions. See examples, practice problems, and comments from other learners.
Learn the meaning and usage of the word log in different contexts, such as forestry, nautical, mathematics, and computing. Find synonyms, antonyms, and related terms for log in various dictionaries and sources.
