Troubleshoot constraints
Updated 28 Aug 2023
If your algorithmic value displays an error in the question-and-answer area or in the Algorithmic Values List, edit the value in the Edit Algorithmic Values window and check whether you have made one of the following errors when specifying your constraints:
Omitting a tilde (~) before an algorithmic
value name in the Constraint Value column
Make sure you enter a tilde in front of all algorithmic value names.
Omitting quotation marks around text
or symbols
Make sure that all text entries and symbol codes are surrounded by quotation marks. If you forgot to enter the quotation marks, your answer is evaluated as incorrect.
Using undefined algorithmic values
Make sure you define all algorithmic values used in the definition of other algorithmic values.
Creating a set of constraints that
cannot be satisfied
Make sure you choose the correct relational operators. For example, if you accidentally specify a range as <4 and >10, you get an error.
Mismatch of an algorithmic value
type selection and its constraints
Make sure your constraints make sense for the type of algorithmic value you selected.
Improperly defined mathematical
function syntax
Make sure you satisfy all the conditions for mathematical functions. For example, if you specified IFTHEN(A,B,C), make sure you replace the variables A, B, and C with your own algorithmic values (preceded by a tilde) or with constant values.
Your Algorithmic Values List might display more information about the error than the message shown in the question-and-answer area.