Update app.py

add new new tool to calculate compound interest

app.py

@@ -9,14 +9,20 @@ from Gradio_UI import GradioUI
 
 # Below is an example of a tool that does nothing. Amaze us with your creativity !
 @tool
-def my_custom_tool(arg1:str, arg2:int)-> str: #it's import to specify the return type
+def get_compounded_interest(principal: float, annualInterest: float, numberOfYear: int, compoundPeriodPerYear: int )-> float: #it's import to specify the return type
     #Keep this format for the description / args / args description but feel free to modify the tool
-    """A tool that does nothing yet 
+    """A tool that return the total future value of an investment based on the compounded interest
     Args:
-        arg1: the first argument
-        arg2: the second argument
+        principal: the invest amount
+        annualInterest: annual interest rate
+        numberOfYear: number of year you will hold the investment
+        compoundPeriodPerYear: number of compounding period in a year
     """
-    return "What magic will you build ?"
+    try:
+        interest = annualInterest / 100
+        return principal * (( 1 + (interest/ compoundPeriodPerYear)) ** (compoundPeriodPerYear*numberOfYear))
+    except Exception as e:
+        return f"Error in computing the compound interest : {str(e)}"
 
 @tool
 def get_current_time_in_timezone(timezone: str) -> str: