let calculationSteps = “”; function calculateExpression(){ const expression = document.getElementById(“expression”).value; if(expression.trim() === “”){ alert(“Please enter a valid expression.”); return; } // Simple placeholder for calculation – this can be expanded with real calculation logic const result = eval(expression); // Caution: eval can be dangerous if inputs are not sanitized document.getElementById(“result”).value = result.toFixed(2); calculationSteps = `Input:
Expression: ${expression}

`; calculationSteps += `Result:
Calculated Value: ${result.toFixed(2)}
`; if(document.getElementById(“calculationSteps”).style.display===”block”){ document.getElementById(“calculationSteps”).innerHTML = calculationSteps; } } function resetCalculator(){ document.getElementById(“expression”).value = “”; document.getElementById(“result”).value = “”; calculationSteps = “”; document.getElementById(“calculationSteps”).innerHTML = “

Not calculated yet.

“; } function toggleSteps(){ const s = document.getElementById(“calculationSteps”); const a = document.getElementById(“toggleArrow”); if(s.style.display === “none” || s.style.display === “”){ s.style.display = “block”; a.style.transform = “rotate(180deg)”; s.innerHTML = calculationSteps || “

Not calculated yet.

“; } else { s.style.display = “none”; a.style.transform = “rotate(0deg)”; } }