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   results = {}; // Reset results
    let epsilon = 1e-6; // Define a tolerance value for floating-point comparison
    if (expressionArray.includes('x') && expressionArray.includes('y')) {
    // Loop through array to find pairs of (x, y)
    for (let i = 0; i < array.length; i++) {
        results[`temp${i}`] = []; // Create a new array to store results for each 'i'

        for (let j = 0; j < array.length; j++) { 
            let x = array[i];
            let y = array[j];

            let expression = expressionArray.join('')
            .replace(/x/g, x)
            .replace(/y/g, y);

            let result = eval(expression); 

 
   results = {}; // Reset results
    let epsilon = 1e-6; // Define a tolerance value for floating-point comparison
    if (expressionArray.includes('x') && expressionArray.includes('y')) {
    // Loop through array to find pairs of (x, y)
    for (let i = 0; i < array.length; i++) {
        results[`temp${i}`] = []; // Create a new array to store results for each 'i'

        for (let j = 0; j < array.length; j++) { 
            let x = array[i];
            let y = array[j];

            let expression = expressionArray.join('')
            .replace(/x/g, x)
            .replace(/y/g, y);

            let result = eval(expression);