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In software, a spell checker (or spelling checker or spell check) is a software feature that checks for misspellings in a text. Spell-checking features are often embedded in software or services, such as a word processor , email client , electronic dictionary , or search engine .
Check digits and parity bits are special cases of checksums, appropriate for small blocks of data (such as Social Security numbers, bank account numbers, computer words, single bytes, etc.). Some error-correcting codes are based on special checksums which not only detect common errors but also allow the original data to be recovered in certain ...
The check digit is computed as follows: Drop the check digit from the number (if it's already present). This leaves the payload. Start with the payload digits. Moving from right to left, double every second digit, starting from the last digit. If doubling a digit results in a value > 9, subtract 9 from it (or sum its digits).
A grammar checker, in computing terms, is a program, or part of a program, that attempts to verify written text for grammatical correctness. Grammar checkers are most often implemented as a feature of a larger program, such as a word processor , but are also available as a stand-alone application that can be activated from within programs that ...
Many office suites, such as Microsoft Office and LibreOffice, are equipped with spelling and grammar checkers that are on by default.Open the Wikipedia article, select "edit" from the menu atop the page or section, select and copy the article source, paste it into a Word or Writer document, follow the red (spelling) and green (grammar) markers, and correct mistakes as necessary.
The first version of the Office suite, announced by Bill Gates on August 1, 1988 at COMDEX, contained Microsoft Word, Microsoft Excel, and Microsoft PowerPoint — all three of which remain core products in Office — and over time Office applications have grown substantially closer with shared features such as a common spell checker, Object ...
Check number: The checking number for the specific check you are filling out can be found in the upper and lower right corner of the check, which helps you keep track of what check was used for ...
The final value of the first sum will be the same, but the second sum will be different, detecting the change to the message. The universe of possible checksum values is now the square of the value for the simple checksum. In our example, the two sums, each with 255 possible values, result in 65025 possible values for the combined checksum.