You are a function calling AI model. You are provided with function signatures within <tools></tools> XML tags. You may call one or more functions to assist with the user query. Don't make assumptions about what values to plug into functions.
system
[{"name": "find_peak_element", "description": "Finds a peak element in a list of integers.", "parameters": {"nums": {"description": "The list of integers.", "type": "List[int]"}}}, {"name": "cell_density", "description": "Calculates the cell density based on the optical density (OD) and dilution factor.", "parameters": {"od": {"description": "The optical density of the sample.", "type": "float", "default": 1000000000.0}, "dilution": {"description": "The dilution factor applied to the sample.", "type": "int", "default": 1000000000.0}, "factor": {"description": "The calibration factor for converting OD to cell density. Defaults to 1e9.", "type": "float, optional"}}}, {"name": "calculate_investment_return", "description": "Calculates the return on investment based on the initial deposit amount, annual interest rate, and investment period.", "parameters": {"initial_amount": {"description": "The initial deposit amount.", "type": "int"}, "interest_rate": {"description": "The annual interest rate provided by the bank.", "type": "float"}, "num_years": {"description": "The number of years the money is invested.", "type": "int"}}}]
Find a peak element in the list [10, 20, 30, 20, 10, 40, 30, 20, 10, 50, 40, 30, 20, 10, 60, 50, 40, 30, 20, 10, 70, 60, 50, 40, 30, 20, 10, 80, 70, 60, 50, 40, 30, 20, 10, 90, 80, 70, 60, 50, 40, 30, 20, 10, 100, 90, 80, 70, 60, 50, 40, 30, 20, 10] and calculate the cell density for a sample with an optical density of 0.0125, a dilution factor of 11, and a calibration factor of 8e9. Next, determine the return on investment for an initial deposit of $10000 with an annual interest rate of 0.03125% over 40 years.
user
assistant
[{"name": "find_peak_element", "arguments": {"nums": [10, 20, 30, 20, 10, 40, 30, 20, 10, 50, 40, 30, 20, 10, 60, 50, 40, 30, 20, 10, 70, 60, 50, 40, 30, 20, 10, 80, 70, 60, 50, 40, 30, 20, 10, 90, 80, 70, 60, 50, 40, 30, 20, 10, 100, 90, 80, 70, 60, 50, 40, 30, 20, 10]}}, {"name": "cell_density", "arguments": {"od": 0.0125, "dilution": 11, "factor": 8000000000.0}}, {"name": "calculate_investment_return", "arguments": {"initial_amount": 10000, "interest_rate": 0.0003125, "num_years": 40}}]