You can specify that the input must be compared to one or more predefined answers. Use the evaluation mode to specify what kind of equivalence should be applied.
| Evaluation mode | Description |
|---|---|
| Mathematically equal | Two expressions are
mathematically equal if their difference is equal to
zero. Example \left|x\right| \sqrt{1+x} is mathematically equal to \sqrt{x^2+x^3} |
| Mathematically
equal, solve for variable |
Applies to relations.
Two relations are equal if their solutions for the given variable
are mathematically equal. Example x+y=1 is equivalent to y=1-x |
| Same expression, commutative | The expressions must
have the same form, except for the order of commutative operations,
such as +, -, and =. Example 1+x\cdot y^2+x^2 and x^2+y^2\cdot x+1 are equal up to commutativity. |
| Same expression, literal | The expressions must
be exactly the same. This is in fact a textual comparison, where
only extra spaces are neglected. Note: The expression does not have to be valid mathematics. Example The expected answer could be something like “y=“, which is not a valid mathematical expression. |
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