Repeating decimals

WirisQuizzes understands decimal numbers with repeating decimals. Repeating decimals are a notation used to represent decimal numbers with periodic expansion—i.e., rational numbers. There are three symbols available to mark repeating decimals; you can use any of them. The system is smart enough to know that 0.333… = 0.\overline{3}, and of course, that 0.9 = 1.

Thus, students can submit answers with repeating decimals at any time. The system will recognize them like any other decimal number. If the answer fits the validation criteria (Tolerance, Mathematically equal, etc.), it will be graded as Correct.

Conversely, teachers can also define a Correct answer as a repeating decimal. The student can submit any number—with or without repeating decimals, even a fraction—and it may be graded as correct, depending on the validation criteria.

Finally, note that there is no Additional property to validate whether a student answer contains repeating decimals, nor is it possible to generate variables with repeating decimals. However, you can use the Literally equal validation option to check whether the student answer and the correct answer have the same form—e.g., whether both do or do not include repeating decimals.