Logical Error Definition
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runtime error that may simply produce the wrong output or may cause a program to crash while example of logic error running. Many different types of programming mistakes can cause logic errors. For logical error vs syntax error example, assigning a value to the wrong variable may cause a series of unexpected program errors. Multiplying syntax error definition two numbers instead of adding them together may also produce unwanted results. Even small typos that do not produce syntax errors may cause logic errors. In the PHP code
Runtime Error Definition
example below, the if statement may cause a logic error since the single equal sign (=) should be a double equal sign (==). Incorrect: if ($i=1) { ... } Correct: if ($i==1) { ... } In PHP, "==" means "is equal to," while "=" means "becomes." Therefore, the incorrect if statement always returns TRUE, since assigning 1 run time errors to the variable $i returns a TRUE value. In the correct code, the if statement only returns TRUE if $i is equal to 1. However, since the syntax of the incorrect code is acceptable, it will not produce a syntax error and the code will compile successfully. The logic error might only be noticed during runtime. Because logic errors are often hidden in the source code, they are typically harder to find and debug than syntax errors. Updated: April 27, 2012 Cite this definition: APAMLAChicagoHTMLLink http://techterms.com/definition/logic_error TechTerms - The Tech Terms Computer Dictionary This page contains a technical definiton of Logic Error. It explains in computing terminology what Logic Error means and is one of many software terms in the TechTerms dictionary. All definitions on the TechTerms website are written to be technically accurate but also easy to understand. If you find this Logic Error definition to be helpful, you can reference it using the citation links above. If you think a term should be updated or added to the T
the error. Logical errors -- Errors that indicate http://www.wiley.com/college/busin/icmis/oakman/outline/chap05/slides/errors.htm the logic used when coding the program failed to solve the problem. You do not get error messages with logic errors. Your only clue to the existence of logic errors is the production of wrong solutions. [Chapter Contents] [Home] [Glossary] [Previous Slide] [Next Slide]
Page tools TheFreeDictionary Google Bing ? Keyboard Word / Article Starts with Ends with Text A A A A Language: EnglishEspañolDeutschFrançaisItalianoالعربية中文简体PolskiPortuguêsNederlandsNorskΕλληνικήРусскийTürkçeאנגלית Twitter Get our app Log in / Register E-mail Password http://www.thefreedictionary.com/Logical+errors Wrong username or password. Facebook Twitter Google+ Yahoo Remember Me Forgot https://www.techwalla.com/articles/differences-between-a-syntax-error-and-a-logical-error password? Register Getour app DictionaryThesaurusMedicalDictionaryLegalDictionaryFinancialDictionaryAcronymsIdiomsEncyclopediaWikipediaEncyclopedia Tools A A A A Language: EnglishEspañolDeutschFrançaisItalianoالعربية中文简体PolskiPortuguêsNederlandsNorskΕλληνικήРусскийTürkçeאנגלית Mobile Apps: apple android For surfers: Free toolbar & extensions Word of the Day Help For webmasters: Free content Linking Lookup box Close fallacy (redirected from Logical errors)Also found in: Thesaurus, Legal, error definition Encyclopedia, Wikipedia.Related to Logical errors: Logical fallacies, Runtime errors fal·la·cy (făl′ə-sē)n. pl. fal·la·cies 1. A false notion.2. A statement or an argument based on a false or invalid inference.3. Incorrectness of reasoning or belief; erroneousness.4. The quality of being deceptive.[Alteration of Middle English fallace, from Old French, from Latin fallācia, deceit, from fallāx, fallāc-, deceitful, from logical error definition fallere, to deceive.]fallacy (ˈfæləsɪ) n, pl -cies1. an incorrect or misleading notion or opinion based on inaccurate facts or invalid reasoning2. unsound or invalid reasoning3. the tendency to mislead4. (Logic) logic an error in reasoning that renders an argument logically invalid[C15: from Latin fallācia, from fallax deceitful, from fallere to deceive]fal•la•cy (ˈfæl ə si) n., pl. -cies. 1. a deceptive, misleading, or false notion, belief, etc.; misconception. 2. a misleading or unsound argument. 3. erroneousness. 4. any of various types of erroneous reasoning that render arguments logically unsound. 5. Obs. deception. [1350-1400; Middle English fallace < Middle French < Latin fallācia a trick, deceit] ThesaurusAntonymsRelated WordsSynonymsLegend:Switch to new thesaurus Noun1.fallacy - a misconception resulting from incorrect reasoningfalse beliefpseudoscience - an activity resembling science but based on fallacious assumptionsmisconception - an incorrect conceptionlogical fallacy - a fallacy in logical argumentationpathetic fallacy - the fallacy of attributing human feelings to inanimate objects; `the friendly sun' is an example of the pathetic fallacysophism, sophistry, sophistication - a deliberately i
ProductsHomearound the homeproductivityDifferences Between a Syntax Error and a Logical ErrorDifferences Between a Syntax Error and a Logical ErrorBy Roger GoldenAn error can disrupt program flow, create nonsensical results or cause a program to terminate completely. Understanding the differences between syntax errors and logical ones helps the debugging process by making error location a simpler task. Neither type of error is confined to programming, and real-life examples are easy to spot.Logic and SyntaxThink of logic as yes-or-no questions and syntax as the parts of speech. Logic is a progression of conclusions based on simple statements. Complex logic patterns are created by combining a series of statements that define the desired result. Logic statements can be expressed mathematically, but syntax errors cannot. A syntax error is typically an action that is performed unnecessarily, in the wrong order, or completely out of context for the intended use. Syntax errors can be detected by analytical software, while a logical error is difficult for the computer to discern.Program Operation and Syntax ErrorsIn programming, a syntax error occurs when the program attempts to evaluate a statement and encounters a fuzzy command or impossible statement. One example of a syntax error would be an equation with undefined variables, or a print command without print value. By thinking of syntax as the parts of speech you can understand the importance of proper organization of programming statements. Commands are actions that are performed on the subject of the statement, with additional descriptions and branching commands added to the structure in the form of operands such as AND, OR and WHILE among others, just as they are in speech.Logic and Syntax in Real LifeLogic errors are miscalculations or misinterpretations of events. In many cases, a logical error occurs when a conclusion is drawn without enough supporting evidence. For instance, to assume that the power is off because there are no electric appliances running is a logical error because it contains only an assumption. An electrical short tripping the main breaker is an example of a syntax error, as the system is unable to comply with a total draw to ground.Errors and Data CorruptionIf a logical error is written into a program, it has the potential to corrupt data or even cause the program to stop running. Once an incorrect value has been established, the computer will continue to use that value because it is unable to recognize the error and passes it on to the program. This could lead to a corrupt database, faulty calculations or garbled images. Synta