Complex mathematical Expression calculator html code - free html code for

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Here is a code for Complex mathematical expression calculator convertor HTML code    

<html lang="en">


    <meta charset="UTF-8"></meta>

    <meta content="width=device-width, initial-scale=1.0" name="viewport"></meta>

    <title>Complex Calculator</title>


        body {

            font-family: Arial, sans-serif;

            text-align: center;

            margin: 50px;





    <h2>Complex Calculator</h2>

    <label for="expression">Enter Expression:</label>

    <input id="expression" placeholder="Enter expression" type="text" />

    <br />

    <button onclick="calculate()">Calculate</button>

    <p id="result"></p>


        function calculate() {

            // Get the input expression

            var expression = document.getElementById("expression").value;

            try {

                // Evaluate the expression

                var result = eval(expression);

                // Display the result

                document.getElementById("result").innerHTML = "Result: " + result;

            } catch (error) {

                // Handle any errors during evaluation

                document.getElementById("result").innerHTML = "Invalid expression.";







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