// Numbas version: finer_feedback_settings {"name": "Names of special matrices", "extensions": [], "custom_part_types": [], "resources": [], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "question_groups": [{"pickingStrategy": "all-ordered", "questions": [{"name": "Names of special matrices", "tags": ["diagonal", "identity", "lower triangular", "matrices", "matrix", "square", "terminology", "triangular", "upper triangular", "zero"], "metadata": {"description": "
Matching exercise with terminology: zero, square, diagonal, identity, upper/lower triangular
", "licence": "Creative Commons Attribution-NonCommercial 4.0 International"}, "statement": "Match each matrix to exactly one description.
", "advice": "", "rulesets": {}, "extensions": [], "builtin_constants": {"e": true, "pi,\u03c0": true, "i": true, "j": false}, "constants": [], "variables": {}, "variablesTest": {"condition": "", "maxRuns": 100}, "ungrouped_variables": [], "variable_groups": [], "functions": {}, "preamble": {"js": "", "css": ""}, "parts": [{"type": "m_n_x", "useCustomName": false, "customName": "", "marks": 0, "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "minMarks": 0, "maxMarks": 0, "minAnswers": 0, "maxAnswers": 0, "shuffleChoices": true, "shuffleAnswers": false, "displayType": "radiogroup", "warningType": "none", "showCellAnswerState": true, "markingMethod": "sum ticked cells", "choices": ["$\\begin{pmatrix} 0 & 0 \\\\ 0 & 0\\end{pmatrix}$", "$\\begin{pmatrix} 1 & 0 & 0 \\\\ 0 & 1 & 0 \\\\ 0 & 0 & 1\\end{pmatrix}$", "$\\begin{pmatrix} 7 & 0 \\\\ 0 & -3\\end{pmatrix}$", "$\\begin{pmatrix} 1 & -3 & 5 \\\\ 0 & 9 & -2 \\\\ 0 & 0 & 7\\end{pmatrix}$", "$\\begin{pmatrix} 1 & 0 \\\\ 1 & 1\\end{pmatrix}$", "$\\begin{pmatrix} 8 & 0 & 5 \\\\ 4 & 0 & -12 \\\\ -5 & 2 & 1\\end{pmatrix}$"], "matrix": [["1", 0, 0, 0, 0, 0], [0, "1", 0, 0, 0, 0], [0, 0, "1", 0, 0, 0], [0, 0, 0, "1", 0, 0], [0, 0, 0, 0, "1", 0], [0, 0, 0, 0, 0, "1"]], "layout": {"type": "all", "expression": ""}, "answers": ["Zero", "Identity", "Diagonal", "Upper triangular", "Lower triangular", "Square"], "choicesHeader": "", "answersHeader": ""}], "partsMode": "all", "maxMarks": 0, "objectives": [], "penalties": [], "objectiveVisibility": "always", "penaltyVisibility": "always", "contributors": [{"name": "Will Roberts", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/32402/"}], "resources": []}]}], "contributors": [{"name": "Will Roberts", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/32402/"}]}