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When a mistake that a reader could have relied on is found in a calculator or a guide, it is fixed on the page and recorded here with the date, what was wrong and what it says now. Small changes that no figure depended on, such as a typo, are not listed. How errors are found and handled is described in the editorial policy.
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No corrections have been logged yet. This page will list each one, newest first, when a mistake is found and fixed.
Report a mistake
If a figure looks wrong, please say which tool or guide it is on, what you entered, what you expected and what you got. A screenshot helps. Use the contact page. A confirmed error is fixed, the page’s update date changes, and it appears in the log above.