Sure, I can help you with that!

Here's how you can create a simple calculator using JavaScript:

```html
<!DOCTYPE html>
<html>
<head>
	<title>Calculator</title>
	<script>
		function calculate() {
			var num1 = parseFloat(document.getElementById("num1").value);
			var num2 = parseFloat(document.getElementById("num2").value);
			var operator = document.getElementById("operator").value;
			var result = 0;
			if(operator == "+") {
				result = num1 + num2;
			} else if(operator == "-") {
				result = num1 - num2;
			} else if(operator == "*") {
				result = num1 * num2;
			} else if(operator == "/") {
				result = num1 / num2;
			}
			document.getElementById("result").value = result;
		}
	</script>
</head>
<body>
	<input type="text" id="num1" placeholder="Enter first number"><br><br>
	<input type="text" id="num2" placeholder="Enter second number"><br><br>
	<select id="operator">
		<option value="+">+</option>
		<option value="-">-</option>
		<option value="*">*</option>
		<option value="/">/</option>
	</select><br><br>
	<button onclick="calculate()">Calculate</button><br><br>
	<input type="text" id="result" placeholder="Result">
</body>
</html>
```
And here's how you can create a simple calculator using Python:

```python
def calculate():
	num1 = float(input("Enter first number: "))
	num2 = float(input("Enter second number: "))
	operator = input("Enter operator (+,-,*,/): ")
	result = 0
	if operator == "+":
		result = num1 + num2
	elif operator == "-":
		result = num1 - num2
	elif operator == "*":
		result = num1 * num2
	elif operator == "/":
		result = num1 / num2
	print("Result: ", result)
calculate()
```
I hope that helps! Let me know if you have any further questions.
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