{"title":"对数","authors":"J. Bird","doi":"10.4324/9781003124214-ch15","DOIUrl":null,"url":null,"abstract":"A logarithm is a variation in the form of an exponential number. The two most commonly used logarithms are Base 10 and Base 'e'. Log (A) is read: Log base 10 of A. Log base 10 (Log10) is referred to as the “Common” logs, whereas Log base e (Log e ) is referred to as the “Natural” logs and uses the abbreviation (Ln). Unless otherwise indicated the term Log (x) is always understood to be base 10 or Log10(x)","PeriodicalId":212197,"journal":{"name":"Bird's Basic Engineering Mathematics","volume":"36 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2021-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Logarithms\",\"authors\":\"J. Bird\",\"doi\":\"10.4324/9781003124214-ch15\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A logarithm is a variation in the form of an exponential number. The two most commonly used logarithms are Base 10 and Base 'e'. Log (A) is read: Log base 10 of A. Log base 10 (Log10) is referred to as the “Common” logs, whereas Log base e (Log e ) is referred to as the “Natural” logs and uses the abbreviation (Ln). Unless otherwise indicated the term Log (x) is always understood to be base 10 or Log10(x)\",\"PeriodicalId\":212197,\"journal\":{\"name\":\"Bird's Basic Engineering Mathematics\",\"volume\":\"36 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2021-01-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Bird's Basic Engineering Mathematics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.4324/9781003124214-ch15\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Bird's Basic Engineering Mathematics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.4324/9781003124214-ch15","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A logarithm is a variation in the form of an exponential number. The two most commonly used logarithms are Base 10 and Base 'e'. Log (A) is read: Log base 10 of A. Log base 10 (Log10) is referred to as the “Common” logs, whereas Log base e (Log e ) is referred to as the “Natural” logs and uses the abbreviation (Ln). Unless otherwise indicated the term Log (x) is always understood to be base 10 or Log10(x)