// Numbas version: finer_feedback_settings
{"name": "Luis's copy of How to enter algebraic expressions - Getting Started", "extensions": [], "custom_part_types": [], "resources": [], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "question_groups": [{"pickingStrategy": "all-ordered", "questions": [{"variablesTest": {"condition": "", "maxRuns": 100}, "parts": [{"gaps": [{"answer": "{a}*x^{b}+{c}x+{d}", "vsetrange": [0, 1], "showpreview": true, "checkingtype": "absdiff", "scripts": {}, "type": "jme", "checkingaccuracy": 0.001, "answersimplification": "all", "showCorrectAnswer": true, "marks": 1, "checkvariablenames": false, "expectedvariablenames": [], "vsetrangepoints": 5}], "showCorrectAnswer": true, "marks": 0, "scripts": {}, "prompt": "<p>Inputting polynomials such as $3x^2+5x-2$ is easy : just input <code>3*x^2+5*x-2</code>.</p>\n<p>Try this:</p>\n<p>Input this polynomial: $\\simplify[all]{{a}*x^{b}+{c}*x+{d}}=\\;$[[0]]</p>", "type": "gapfill"}, {"gaps": [{"answer": "x^2+{a+c}x*y+{a*c}y^2", "vsetrange": [0, 1], "notallowed": {"showStrings": false, "partialCredit": 0, "strings": ["("], "message": "<p>Do not include brackets in your answer.</p>"}, "checkingtype": "absdiff", "scripts": {}, "type": "jme", "checkingaccuracy": 0.001, "showpreview": true, "showCorrectAnswer": true, "marks": 1, "checkvariablenames": true, "expectedvariablenames": ["x", "y"], "answersimplification": "all", "vsetrangepoints": 5}], "showCorrectAnswer": true, "marks": 0, "scripts": {}, "prompt": "<p>Now consider this problem.</p>\n<p>Expand the brackets and input the resulting expression:</p>\n<p>$\\simplify[all]{(x+{a}y)(x+{c}y)}=\\;$[[0]]</p>\n<p>Make sure that you input an expression in your answer such as $xy$ as <code>x*y</code>.</p>\n<p>(Do not include brackets in your answer.)</p>", "type": "gapfill"}], "name": "Luis's copy of How to enter algebraic expressions - Getting Started", "ungrouped_variables": ["a", "s", "b", "c", "d"], "statement": "<p>In this example, we look at how you enter algebraic expressions - those involving symbols.</p>\n<p>The box next to your input shows what you've written in mathematical notation and is very important as you can check it against the expression you had in mind.</p>", "preamble": {"css": "", "js": ""}, "variables": {"d": {"description": "", "templateType": "anything", "name": "d", "group": "Ungrouped variables", "definition": "random(1..9)"}, "a": {"description": "", "templateType": "anything", "name": "a", "group": "Ungrouped variables", "definition": "random(2..9)"}, "b": {"description": "", "templateType": "anything", "name": "b", "group": "Ungrouped variables", "definition": "random(2..4)"}, "s": {"description": "", "templateType": "anything", "name": "s", "group": "Ungrouped variables", "definition": "random(1,-1)"}, "c": {"description": "", "templateType": "anything", "name": "c", "group": "Ungrouped variables", "definition": "s*random(1..9)"}}, "metadata": {"description": "<p>Inputting algebraic expressions into Numbas.</p>", "licence": "Creative Commons Attribution 4.0 International", "notes": ""}, "rulesets": {}, "functions": {}, "variable_groups": [], "question_groups": [{"questions": [], "pickQuestions": 0, "name": "", "pickingStrategy": "all-ordered"}], "showQuestionGroupNames": false, "advice": "", "type": "question", "tags": ["algebraic expressions", "checked2015", "input", "introduction", "notation", "Numbas", "numbas", "polynomials", "symbols"], "contributors": [{"name": "Newcastle University Mathematics and Statistics", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/697/"}, {"name": "Luis Hernandez", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/2870/"}]}]}], "contributors": [{"name": "Newcastle University Mathematics and Statistics", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/697/"}, {"name": "Luis Hernandez", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/2870/"}]}