[Utilities] LLM Calculator Tool Function

[umar-anzar]

{
    "name": "calculator",
    "description": "Call this function whenever complex mathematical expressions are involved. Evaluates a single symbolic expression using SymPy. Supports constants (pi, E, I), algebra (+, -, *, /, **, sqrt, factor, simplify), trigonometry (sin, cos, tan, asin, acos, atan), logarithms (log with base), combinatorics (factorial, comb, perm), and calculus (diff, integrate, limit). Expressions are symbolic; no substitution.",
    "parameters": {
        "type": "object",
        "properties": {
            "expression": {
                "type": "string",
                "description": "A single symbolic expression as a string, e.g. 'sin(pi/4) + sqrt(2)'"
            }
        },
        "required": ["expression"]
    }
}

def calculator(expression: str) -> str:
    """
    Evaluate a single symbolic expression using SymPy and return numeric result
    rounded to 5 decimal places.
    """
    try:
        # Parse string into SymPy expression
        expr = sympify(expression)
        # Evaluate numerically and round to 5 decimal places
        return str(round(float(expr.evalf()), 5))
    except Exception as e:
        return f"Error: {e}"