Corrections

When a formula, a default value or a worked example on a card turns out to be wrong, it is fixed and the change is recorded here. If you spot an error, send the card’s address and the numbers you used through the contact page.

How a correction is handled

• The calculation is repeated by hand with the card’s formula and with an independent check.
• If the card is wrong, the formula, the worked example and the calculator are corrected together, and the change is listed below with its date.
• While a calculator is being checked it may be switched off. Its formula and worked example stay on the card.

Log

No corrections have been needed yet.