An erratum or corrigendum (plurals: errata, corrigenda) is a correction of a manual, handbook or other nonfictional text that contained mistakes. Errata are most commonly issued shortly after the original text was published. Patches to security issues in a computer program are also sometimes called errata.

Errata sheets

An errata sheet is a common method of post-production editing in which the errors left in the produced copy are outlined on a sheet of paper bound into the book. This is a common method by which large works are "edited"; i.e. if the volume would cost too much and/or be too incongruous to edit, this is an acceptable method by which one might edit the work.

It should be noted that errata sheets should only outline minor errors within a work (e.g. misspellings, improper punctuation and the like). If a major error in the construction of a sentence occurs, or if the construction is such that the idea that the sentence delivers is unclear or distorted to the point of confusion or the delivery of the wrong idea, this must be corrected within the work.

Meanings in a non-editorial context

• Design errors and mistakes in a CPU's hardwired microcode may also be referred to as an erratum. One well publicised example is Intel's "flag" erratum in early Pentium Pro processors. This made the conversion of floating point numbers to integers unreliable due to an exception not being signaled under certain conditions.

External links

• Errata - A WikiBooks project collecting errata from printed works and organizing them by ISBN or PMID.
• Pentium Pro Flag Erratum

正誤表 | Erratum | Errata | Communication of falsehoods