// Numbas version: exam_results_page_options
{"name": "identify the true bearing", "extensions": ["geogebra"], "custom_part_types": [], "resources": [], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "question_groups": [{"pickingStrategy": "all-ordered", "questions": [{"name": "identify the true bearing", "tags": [], "metadata": {"description": "<p>Students are shown a random bearing and given its value as a compass bearing.</p>\n<p>They are asked to give its value as a true bearing.</p>", "licence": "Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International"}, "statement": "<p>{geogebra_applet('https://www.geogebra.org/m/qtxdyg2g',defs)}</p>\n<p>The bearing shown is {angle_compass}.</p>", "advice": "<p>Since the bearing is in the {NS}{EW} quadrant,</p>\n<p>{true_bearing}</p>\n<p>Don't forget to give your true bearing as a 3-digit number!</p>", "rulesets": {}, "extensions": ["geogebra"], "builtin_constants": {"e": true, "pi,\u03c0": true, "i": true}, "constants": [], "variables": {"defs": {"name": "defs", "group": "geogebra vars", "definition": "[\n  ['bearing_1',angle]\n  ]", "description": "", "templateType": "anything", "can_override": false}, "angle": {"name": "angle", "group": "geogebra vars", "definition": "random(0..359)", "description": "", "templateType": "anything", "can_override": false}, "angle_compass": {"name": "angle_compass", "group": "display vars", "definition": "switch(angle=0,\"N\",\n  0<angle and angle<90,\"N\"+string(angle)+\"\u00b0E\",\n  angle=90,\"E\",\n  90<angle and angle<180,\"S\"+string(180-angle)+\"\u00b0E\",\n  angle=180,\"S\",\n  180<angle and angle<270,\"S\"+string(angle-180)+\"\u00b0W\",\n  angle=270,\"W\",\n  270<angle and angle<360,\"N\"+string(360-angle)+\"\u00b0W\",\"\")", "description": "", "templateType": "anything", "can_override": false}, "angle_true": {"name": "angle_true", "group": "display vars", "definition": "lpad(string(angle)+\"\u00b0\",4,\"0\")", "description": "", "templateType": "anything", "can_override": false}, "angle_true_2": {"name": "angle_true_2", "group": "display vars", "definition": "lpad(string(angle),3,\"0\")", "description": "", "templateType": "anything", "can_override": false}, "NS": {"name": "NS", "group": "advice calcs", "definition": "switch(angle_compass=\"E\" or angle_compass=\"W\",\"\",\n  angle_compass=\"N\",\"N\",\n  angle_compass=\"S\",\"S\",\n  angle_compass[0])", "description": "", "templateType": "anything", "can_override": false}, "EW": {"name": "EW", "group": "advice calcs", "definition": "switch(angle_compass=\"N\" or angle_compass=\"S\",\"\",\n  angle_compass=\"W\",\"W\",\n  angle_compass=\"E\",\"E\",\n  split(angle_compass,\"\u00b0\")[1])", "description": "", "templateType": "anything", "can_override": false}, "compass_bearing": {"name": "compass_bearing", "group": "advice calcs", "definition": "(split(angle_compass,\"\u00b0\")[0])[1..3]", "description": "", "templateType": "anything", "can_override": false}, "true_bearing": {"name": "true_bearing", "group": "advice calcs", "definition": "switch(\n  NS=\"N\" and EW=\"\", \"true bearing = north = \" + angle_true,\n  NS=\"N\" and EW=\"E\", \"true bearing = \" + angle_true,\n  NS=\"\" and EW=\"E\", \"true bearing = east = \" + angle_true,\n  NS=\"S\" and EW=\"E\", \"true bearing = 180\u00b0 - \" + compass_bearing + \" = \" + angle_true,\n  NS=\"S\" and EW=\"\", \"true bearing = south = \" + angle_true,\n  NS=\"S\" and EW=\"W\", \"true bearing = 180\u00b0 + \" + compass_bearing + \" = \" + angle_true,\n  NS=\"\" and EW=\"W\", \"true bearing = west = \" + angle_true,\n  NS=\"N\" and EW=\"W\", \"true bearing = 360\u00b0 - \" + compass_bearing + \" = \" + angle_true,\n  angle_true\n)", "description": "", "templateType": "anything", "can_override": false}}, "variablesTest": {"condition": "", "maxRuns": 100}, "ungrouped_variables": [], "variable_groups": [{"name": "geogebra vars", "variables": ["angle", "defs"]}, {"name": "display vars", "variables": ["angle_compass", "angle_true", "angle_true_2"]}, {"name": "advice calcs", "variables": ["NS", "EW", "compass_bearing", "true_bearing"]}], "functions": {}, "preamble": {"js": "", "css": ""}, "parts": [{"type": "patternmatch", "useCustomName": false, "customName": "", "marks": 1, "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "<p>Give this bearing as a&nbsp;true bearing.</p>\n<p>You can copy the \"&nbsp;&deg; \" sign from here, or just leave it out.</p>", "answer": "{angle_true}|{angle_true_2}", "displayAnswer": "{angle_true}", "matchMode": "regex"}], "partsMode": "all", "maxMarks": 0, "objectives": [], "penalties": [], "objectiveVisibility": "always", "penaltyVisibility": "always", "contributors": [{"name": "Merryn Horrocks", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/4052/"}]}]}], "contributors": [{"name": "Merryn Horrocks", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/4052/"}]}