Version (v2.0.0)

Author: codedrunkard

calculator-v2.py

@@ -0,0 +1,37 @@
+import re
+import math
+
+def preprocess(expression):
+    # Replace caret with exponent operator
+    expression = expression.replace('^', '**')
+    
+    # Replace square symbols like 5² with 5**2
+    expression = re.sub(r'(\d+)²', r'(\1**2)', expression)
+
+    # Replace sqrt(x) with math.sqrt(x)
+    expression = re.sub(r'sqrt\(([^)]+)\)', r'math.sqrt(\1)', expression)
+
+    return expression
+
+def is_safe_expression(expr):
+    # Only allow numbers, operators, parentheses, and valid keywords
+    return bool(re.match(r'^[\d\s+\-*/().^sqrt²]+$', expr))
+
+def calculate_advanced(expression):
+    expression = expression.replace(' ', '')  # Remove spaces
+    if not is_safe_expression(expression):
+        return "? Invalid input! Only numbers and basic operators (plus ^, sqrt, ²) are allowed."
+
+    try:
+        safe_expr = preprocess(expression)
+        result = eval(safe_expr, {"__builtins__": None, "math": math})
+        return f"? Result: {result}"
+    except Exception as e:
+        return f"?? Error: {e}"
+
+# Example usage
+while True:
+    user_input = input("Enter expression (or 'exit' to quit): ")
+    if user_input.lower() == 'exit':
+        break
+    print(calculate_advanced(user_input))