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script.js
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let displayValue = '';
function clearDisplay() {
displayValue = '';
updateDisplay();
}
function backspace() {
displayValue = displayValue.toString();
displayValue = displayValue.slice(0, -1);
updateDisplay();
}
function appendCharacter(character) {
displayValue += character;
updateDisplay();
}
function calculate() {
try {
displayValue = eval(displayValue);
updateDisplay();
} catch (error) {
displayValue = 'Error';
updateDisplay();
}
}
function sqrt() {
displayValue += 'Math.sqrt(';
updateDisplay();
}
function power(exp) {
displayValue = `Math.pow(${parseFloat(displayValue)}, ${exp})`;
updateDisplay();
}
function trigFunction(func) {
displayValue += `Math.${func}(`;
updateDisplay();
}
function log() {
displayValue += 'Math.log(';
updateDisplay();
}
function ln() {
displayValue += 'Math.log(';
updateDisplay();
}
function atan() {
displayValue += 'Math.atan(';
updateDisplay();
}
function asin() {
displayValue += 'Math.asin(';
updateDisplay();
}
function acos() {
displayValue += 'Math.acos(';
updateDisplay();
}
function updateDisplay() {
document.getElementById('display').value = displayValue;
}
function pi() {
displayValue += Math.PI;
updateDisplay();
}