Examples in the user manual
18. Intervals
What's the domain of «math xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»f«/mi»«mo»(«/mo»«mi»x«/mi»«mo»)«/mo»«mo»=«/mo»«mo»#«/mo»«mi»f«/mi»«/math»?]]>
You can answer in both formats:
]]>
1.0000000
0.3333333
0
0
#i]]>
<question><wirisCasSession><![CDATA[<session lang="en" version="2.0"><library closed="false"><mtext style="color:#ffc800" xml:lang="en">variables</mtext><group><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>f</mi><mo>=</mo><mfrac><msqrt><mfenced><mrow><mi>x</mi><mo>-</mo><mi>random</mi><mfenced><mrow><mo>-</mo><mn>5</mn><mo>,</mo><mo>+</mo><mn>5</mn></mrow></mfenced></mrow></mfenced></msqrt><mfenced><mrow><mi>x</mi><mo>-</mo><mi>random</mi><mfenced><mrow><mo>-</mo><mn>5</mn><mo>,</mo><mo>+</mo><mn>5</mn></mrow></mfenced></mrow></mfenced></mfrac></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>e</mi><mo>=</mo><mi>domain</mi><mfenced><mi>f</mi></mfenced></math></input></command><command><input><math xmlns="http://www.w3.org/1998/Math/MathML"><mi>i</mi><mo>=</mo><mi>expression_to_set</mi><mfenced><mrow><mi>e</mi><mo>,</mo><mi>x</mi></mrow></mfenced></math></input></command></group></library></session>]]></wirisCasSession><correctAnswers><correctAnswer type="mathml"><![CDATA[<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>#</mo><mi mathvariant="normal">i</mi></math>]]></correctAnswer></correctAnswers><assertions><assertion name="check_simplified"/><assertion name="syntax_expression"><param name="intervals">true</param></assertion><assertion name="equivalent_equations"/></assertions><options><option name="tolerance">10^(-4)</option><option name="relative_tolerance">false</option><option name="precision">4</option><option name="implicit_times_operator">false</option><option name="times_operator">·</option><option name="imaginary_unit">i</option></options><localData><data name="inputField">inlineEditor</data><data name="gradeCompound">and</data><data name="gradeCompoundDistribution"></data><data name="casSession"/></localData></question>