free arithmetic calculator online const params new URLSearchParams window location search var params1 new URLSearchParams params toString var res String params1 getAll 'q' var result eval res document getElementById calc innerText res result context https schema org type MathSolver LearningResource name Calculator online url https foxcow com usageInfo https foxcow com privacy inLanguage en potentialAction type SolveMathAction target https foxcow com calc q math expression string mathExpression input required name math expression string eduQuestionType Arithmetic learningResourceType Math solver Send data to this page through query string ex https foxcow com calc q 3 6 9