let emiSteps = “”; const currencySymbol = “₹”, fixedCurrency = “INR”; function calculateEMI(){ emiSteps=””; const loanAmount = parseFloat(document.getElementById(“loanAmount”).value); const interestRate = parseFloat(document.getElementById(“interestRate”).value); const loanTenure = parseFloat(document.getElementById(“loanTenure”).value); if (isNaN(loanAmount) || isNaN(interestRate) || isNaN(loanTenure) || loanAmount <= 0 || interestRate <= 0 || loanTenure <= 0) { alert("Please enter valid positive values for all fields."); return; } const rate = interestRate / 100 / 12; const months = loanTenure * 12; const emi = (loanAmount * rate * Math.pow(1 + rate, months)) / (Math.pow(1 + rate, months) – 1); document.getElementById("emiResult").value = formatCurrency(emi); emiSteps += `Inputs:
Loan Amount: ${formatCurrency(loanAmount)}
Interest Rate: ${interestRate}%
Loan Tenure: ${loanTenure} years

`; emiSteps += `Formulas:
EMI = Loan Amount × Rate × (1 + Rate)^Months / ((1 + Rate)^Months – 1)

`; emiSteps += `Results:
Estimated EMI: ${formatCurrency(emi)}
`; emiSteps += `Tip: Higher loan tenure reduces EMI but increases the total interest paid over time. Choose wisely based on your financial situation.`; if (document.getElementById(“calculationStepsEMI”).style.display === “block”) { document.getElementById(“calculationStepsEMI”).innerHTML = emiSteps; } } function resetEMI(){ document.querySelectorAll(“#calculator input”).forEach(el => el.value = “”); emiSteps = “”; document.getElementById(“calculationStepsEMI”).innerHTML = “

Not calculated yet.

“; } function toggleEMISteps() { const s = document.getElementById(“calculationStepsEMI”); const a = document.getElementById(“toggleArrowEMI”); if (s.style.display === “none” || s.style.display === “”) { s.style.display = “block”; a.style.transform = “rotate(180deg)”; s.innerHTML = emiSteps || “

Not calculated yet.

“; } else { s.style.display = “none”; a.style.transform = “rotate(0deg)”; } } function formatCurrency(n) { return currencySymbol + n.toFixed(2) + ” ” + fixedCurrency; }