There are several potential sources of errors in a numerical calculation. Two sources are universal in the sense that they occur in any numerical computation. They are round-off and truncation errors. Inaccuracies of numerical computations due to the errors result in a deviation of a numerical solution from the exact solution, no matter whether the latter is known explicitly or not.
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Toggle Main Navigation. Search Answers Clear Filters. Answers Support MathWorks. Search Support Clear Filters. Support Answers MathWorks. Truncation is used in computing when division is done with integers and the answer must be an integer. Sometimes a number is approximated by just ignoring digits.
Truncation — a symbol added to the end of the root of a word to instruct the database to search for all forms of a word. Wildcards — a symbol used to represent any character. Truncation error is defined as the difference between the true analytical derivative of a function and its derivative obtained by numerical approximation.
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