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An erratum or corrigendum (plurals: errata, corrigenda) (comes from la,
errata corrige An erratum or corrigendum (plurals: errata, corrigenda) (comes from la, errata corrige) is a correction of a published text. As a general rule, publishers issue an erratum for a production error (i.e., an error introduced during the publishing pr ...
) is a correction of a published text. As a general rule, publishers issue an erratum for a production error (i.e., an error introduced during the publishing process) and a corrigendum for an author's error. It is usually bound into the back of a book, but for a single error a slip of paper detailing a corrigendum may be bound in before or after the page on which the error appears. An erratum may also be issued shortly after its original text is published.


Etymology

Corrigendum is the gerundive form of the Latin compound verb ''corrigo -rexi -rectum'' (from the verb ''rego'', "to make straight, rule", plus the preposition ''cum'', "with"), "to correct", and thus signifiesassuming the full form has added to it the verb ''sum'' or parts thereof, changing the meaning to the idea of necessity or compulsion "(those things) which must be corrected" and in its single form ''Corrigendum'' it means "(that thing) which must be corrected".


Errata sheets

According to the ''
Chicago Manual of Style (''City in a Garden''); I Will , image_map = , map_caption = Interactive Map of Chicago , coordinates = , coordinates_footnotes = , subdivision_type = Country , subdivision_name ...
'', "Errata, lists of errors and their corrections, may take the form of loose, inserted sheets or bound-in pages. An errata sheet is definitely not a usual part of a book. It should never be supplied to correct simple
typographical error A typographical error (often shortened to typo), also called a misprint, is a mistake (such as a spelling mistake) made in the typing of printed (or electronic) material. Historically, this referred to mistakes in manual type-setting (typography) ...
s (which may be rectified in a later printing) or to insert additions to, or revisions of, the printed text (which should wait for the next edition of the book). It is a device to be used only in extreme cases where errors severe enough to cause misunderstanding are detected too late to correct in the normal way but before the finished book is distributed. Then the errors may be listed with their locations and their corrections on a sheet that is tipped in, either before or after the book is bound, or laid in loose, usually inside the front cover of the book. (Tipping and inserting must be done by hand, thus adding considerably to the cost of the book.)"


Errata associated with integrated circuits

Design errors and mistakes in a
microprocessor A microprocessor is a computer processor where the data processing logic and control is included on a single integrated circuit, or a small number of integrated circuits. The microprocessor contains the arithmetic, logic, and control circ ...
's hardwired logic may also be documented and described as errata. One well-publicized example is
Intel Intel Corporation is an American multinational corporation and technology company headquartered in Santa Clara, California. It is the world's largest semiconductor chip manufacturer by revenue, and is one of the developers of the x86 ser ...
's "FDIV" erratum in early
Pentium Pentium is a brand used for a series of x86 architecture-compatible microprocessors produced by Intel. The original Pentium processor from which the brand took its name was first released on March 22, 1993. After that, the Pentium II and P ...
processors, known as the
Pentium FDIV bug The Pentium FDIV bug is a hardware bug affecting the floating-point unit (FPU) of the early Intel Pentium processors. Because of the bug, the processor would return incorrect binary floating point results when dividing certain pairs of high- ...
. This gave incorrect answers to a floating-point division instruction (FDIV) for a small set of numbers, due to an incorrect lookup table inside the Pentium chip. Similarly, design errors in
peripheral A peripheral or peripheral device is an auxiliary device used to put information into and get information out of a computer. The term ''peripheral device'' refers to all hardware components that are attached to a computer and are controlled by the ...
devices, such as disk controllers and video display units, can result in abnormal operation under certain conditions.


See also

*
Addendum An addendum or appendix, in general, is an addition required to be made to a document by its author subsequent to its printing or publication. It comes from the gerundive , plural , "that which is to be added," from (, compare with memorandum ...
*
Bible errata Throughout history, printers' errors, unconventional translations and translation mistakes have appeared in a number of published Bibles. Bibles with features considered to be erroneous are known as Bible errata, and were often destroyed or su ...
*
Cancel leaf A cancel is a bibliographic term for a replaced leaf in a printed book.Bibliographical Notes and Queries - Volumes 1-2 - Page 11 1935 - Normally, a cancel leaf is of course later than what I may call an integral leaf. The technique for this is ...
*
Correction (newspaper) A correction in a newspaper consists of posting a public notice about a typographical error or factual mistake in a previously published article. Newspapers usually have specific policies for readers to report factual errors. Generally, this requ ...
* Retractions in academic publishing


References


External links


BookErrata.com
{{Book structure Error Book terminology Publishing terminology Latin words and phrases