// Numbas version: finer_feedback_settings
{"name": "Chained inequality", "extensions": [], "custom_part_types": [], "resources": [], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "question_groups": [{"pickingStrategy": "all-ordered", "questions": [{"name": "Chained inequality", "tags": [], "metadata": {"description": "<p>This question applies a rewriting rule to the student's answer and correct answer, to interpret chained inequalities $a&lt;b&lt;c$ and $a&gt;b&gt;c$ as $(a&lt;b) \\wedge (b&lt;c)$ and $(a&gt;b) \\wedge (b&gt;c)$ respectively.</p>\n<p>This is a work-around until the parser interprets chained relations this way automatically.</p>", "licence": "Creative Commons Attribution 4.0 International"}, "statement": "", "advice": "", "rulesets": {}, "extensions": [], "variables": {"expr": {"name": "expr", "group": "Ungrouped variables", "definition": "expression(\"a<b<c\")", "description": "", "templateType": "anything"}, "r": {"name": "r", "group": "Ungrouped variables", "definition": "replace(\"?;a < ?;b < ?;c\", \"a<b and b<c\", expr)", "description": "", "templateType": "anything"}, "s": {"name": "s", "group": "Ungrouped variables", "definition": "string(r)", "description": "", "templateType": "anything"}}, "variablesTest": {"condition": "", "maxRuns": 100}, "ungrouped_variables": ["expr", "r", "s"], "variable_groups": [], "functions": {}, "preamble": {"js": "", "css": ""}, "parts": [{"type": "jme", "useCustomName": false, "customName": "", "marks": 1, "scripts": {}, "customMarkingAlgorithm": "studentExpr:\n  replace(\"?;a < ?;b < ?;c\", \"a<b and b<c\", \n  replace(\"?;a > ?;b > ?;c\", \"a>b and b>c\", \n  base_studentExpr\n  ))\n\ncorrectExpr:\n  replace(\"?;a < ?;b < ?;c\", \"a<b and b<c\", \n  replace(\"?;a > ?;b > ?;c\", \"a>b and b>c\", \n  base_correctExpr\n  ))", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>Write $a&lt;b&lt;c$ or anything equivalent.</p>", "answer": "a<b<c", "showPreview": true, "checkingType": "absdiff", "checkingAccuracy": 0.001, "failureRate": 1, "vsetRangePoints": 5, "vsetRange": [0, 1], "checkVariableNames": false, "singleLetterVariables": false, "allowUnknownFunctions": true, "implicitFunctionComposition": false, "valuegenerators": [{"name": "a", "value": ""}, {"name": "b", "value": ""}, {"name": "c", "value": ""}]}], "partsMode": "all", "maxMarks": 0, "objectives": [], "penalties": [], "objectiveVisibility": "always", "penaltyVisibility": "always", "type": "question", "contributors": [{"name": "Christian Lawson-Perfect", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/7/"}], "resources": []}]}], "contributors": [{"name": "Christian Lawson-Perfect", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/7/"}]}