SAGE mathematics software to perform a full symbolic algebraic comparison. Evaluation: This method generates random numbers for the question variables and then evaluates both the student response and the question\'s answer for that set of values. Equivalence: This is the simplest of all the methods. It will only perform the most basic of comparisons between expressions.'; $string['compareby'] = 'Comparison Algorithm'; $string['comparesage'] = 'SAGE'; $string['compareeval'] = 'Evaluation'; $string['compareequiv'] = 'Equivalence'; $string['correctanswers'] = 'Correct answers'; $string['correctansweris'] = 'The correct answer is: {$a} giving '; $string['disallow'] = 'Disallowed Answer'; $string['disallow_help'] = 'contains an expression which will be disallowed as an answer. Students entering an answers which matches this will be prevented from receiving any grade for the question even if the response would match a given answer for the question.'; $string['disallowans'] = 'Disallowed Answer'; $string['disallowanswer'] = 'Disallowed Answer'; $string['editingalgebra'] = 'Editing an Algebra question'; $string['evalchecks'] = 'Evaluation Checks'; $string['filloutoneanswer'] = 'You must provide at least one possible answer. Answers left blank will not be used. \'*\' can be used as a wildcard to match any characters. The first matching answer will be used to determine the score and feedback. Only variables defined above are allowed'; $string['filloutonevariable'] = 'You must provide at least one variable. All variables used by answers must be entered here. Minimum and a maximum values are only needed if the Evaluation comparison algorithm is used.'; $string['illegalvarname'] = 'Illegal variable name \'{$a}\': same name as a parser function or special constant'; $string['nchecks'] = 'Number of Evaluation Checks'; $string['nchecks_help'] = 'Number of Evaluation Checks used in Evaluation Comparison Algorithm'; $string['notanumber'] = 'Invalid value: a number is required'; $string['notenoughvars'] = 'At least one variable is required for all algebra questions'; $string['novarmax'] = 'No maximum bound specified for variable'; $string['novarmin'] = 'No minimum bound specified for variable'; $string['parseerror'] = 'Error parsing function: \'{$a}\''; $string['restoreqdbfailed'] = 'Restoring algebra question failed: database write error'; $string['restorevardbfailed'] = 'Restoring algebra question variable failed: database write error'; $string['tolerance'] = 'Tolerance for Evaluation Checks'; $string['tolerance_help'] = 'Determines the maximum difference between numerical evaluations of the student response and question answers which will be allowed to count as matching.'; $string['toleranceltzero'] = 'Tolerance must be greater than or equal to zero'; $string['undefinedvar'] = 'Undefined variable(s) {$a} used in one or more answers'; $string['unusedvar'] = 'This variable is not used by any answer'; $string['variable'] = 'Variable Name'; $string['variablename'] = 'Variable Name'; $string['variableno'] = 'Variable {$a}'; $string['variables'] = 'Variables'; $string['varmin'] = 'Minimum Value'; $string['varmingtmax'] = 'The minimum value must be less than the maximum value'; $string['varmax'] = 'Maximum Value'; $string['pluginnameadding'] = 'Adding an algebra question'; $string['pluginnameediting'] = 'Editing an algebra question'; $string['pluginname_link'] = 'question/type/algebra'; $string['pluginname_help'] = 'Student enter a formula as response that include one or more variables. Correctness is evaluted using one of 3 differents methods'; $string['pluginname'] = 'algebra'; $string['pluginnamesummary'] = 'Student enter a formula that can include one or more variables. Correctness is evaluted using one of 3 differents methods.'; $string['host'] = 'Host url of SAGE server'; $string['port'] = 'Port of SAGE server'; $string['uri'] = 'uri of SAGE server';