// Numbas version: exam_results_page_options
{"name": "Definite Integrals (b) (custom feedback)", "extensions": [], "custom_part_types": [], "resources": [], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "question_groups": [{"pickingStrategy": "all-ordered", "questions": [{"ungrouped_variables": [], "functions": {}, "tags": [], "metadata": {"licence": "Creative Commons Attribution 4.0 International", "description": "<p>Definite Integrals</p>"}, "extensions": [], "preamble": {"css": "", "js": ""}, "variablesTest": {"condition": "", "maxRuns": 100}, "parts": [{"type": "jme", "checkingAccuracy": 0.001, "marks": 1, "vsetRangePoints": 5, "answer": "ln(e+1)", "unitTests": [], "showFeedbackIcon": true, "expectedVariableNames": [], "prompt": "<p>$\\int_0^1\\frac{e^z+1}{e^z+z}\\mathrm{dz}$.</p>\n<p>Express your answer using the natural log, ln().</p>\n<p>Hint: make a substition using the lower line.</p>", "customMarkingAlgorithm": "malrules:\n  [\n    [\"ln(1)-ln(0)\", \"You must sub back in for $u$ before filling in your limits of integration. Also, note that $\\\\ln(0)$ does not exist. $\\\\ln(x)$ is only defined for positive values of $x$. Try entering $\\\\ln(0)$ into your calculator.\"],\n    [\"1/(e+1)-1\",\"You didn't actually integrate before subbing back in for $u$.\"],\n    [\"1-1/0\",\"You didn't actually integrate. You simply subbed in for $e^z+z$. Also, note that $\\\\frac{1}{0}$ is not defined so that should highlight that something is wrong!\"]\n  ]\n\n\nparsed_malrules: \n    map(\n        [\"expr\":parse(x[0]),\"feedback\":x[1]],\n        x,\n        malrules\n    )\n\nagree_malrules (Do the student's answer and the expected answer agree on each of the sets of variable values?):\n    map(\n        len(filter(not x ,x,map(\n            try(\n                resultsEqual(unset(question_definitions,eval(studentexpr,vars)),unset(question_definitions,eval(malrule[\"expr\"],vars)),settings[\"checkingType\"],settings[\"checkingAccuracy\"]),\n                message,\n                false\n            ),\n            vars,\n            vset\n        )))<settings[\"failureRate\"],\n        malrule,\n        parsed_malrules\n    )\n\nmatched_malrules:\n  filter(x[0],x,zip(agree_malrules,parsed_malrules))\n  \nmalrule_feedback:\n    assert(numericallyCorrect,\n        assert(len(matched_malrules)=0,\n            set_credit(0,matched_malrules[0][1][\"feedback\"])\n        )\n    )\n\nmark:\n    apply(studentExpr);\n    apply(unexpectedVariables);\n    apply(sameVars);\n    apply(numericallyCorrect);\n    apply(malrule_feedback);\n    apply(failMinLength);\n    apply(failMaxLength);\n    apply(forbiddenStringsPenalty);\n    apply(requiredStringsPenalty)", "checkVariableNames": false, "showCorrectAnswer": true, "scripts": {}, "failureRate": 1, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "checkingType": "absdiff", "vsetRange": [0, 1], "showPreview": true, "extendBaseMarkingAlgorithm": true}], "name": "Definite Integrals (b) (custom feedback)", "advice": "<p>Definite Integrals</p>", "rulesets": {}, "statement": "<p>Find the following definite integral</p>", "variable_groups": [], "variables": {}, "type": "question", "contributors": [{"name": "cormac breen", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/306/"}, {"name": "Clodagh Carroll", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/384/"}]}]}], "contributors": [{"name": "cormac breen", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/306/"}, {"name": "Clodagh Carroll", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/384/"}]}