In what scenarios is PHP not suitable for certain programming tasks, such as creating a calculator, and what alternatives should be considered?

PHP may not be suitable for tasks requiring complex mathematical calculations, such as creating a calculator, due to its limited support for advanced mathematical operations. In such scenarios, using a language like Python with its extensive mathematical libraries would be more suitable. ```python # Python code for creating a simple calculator def add(x, y): return x + y def subtract(x, y): return x - y def multiply(x, y): return x * y def divide(x, y): if y == 0: return "Error: Division by zero" return x / y # Example usage result = add(5, 3) print(result) ```