Update app.py

app.py

@@ -1,29 +1,77 @@
 import streamlit as st
+import math
+import sympy as sp
 
 def main():
-    st.title("Simple Calculator")
-
-    # User input
-    num1 = st.number_input("Enter first number", value=0.0)
-    num2 = st.number_input("Enter second number", value=0.0)
-
-    # Operation selection
-    operation = st.selectbox("Choose an operation", ["Addition", "Subtraction", "Multiplication", "Division"])
-
-    # Calculation
-    result = None
-    if operation == "Addition":
-        result = num1 + num2
-    elif operation == "Subtraction":
-        result = num1 - num2
-    elif operation == "Multiplication":
-        result = num1 * num2
-    elif operation == "Division":
-        result = num1 / num2 if num2 != 0 else "Error: Division by zero"
-
-    # Display result
-    if result is not None:
+    st.title("Advanced Calculator")
+
+    option = st.sidebar.selectbox("Select Calculation Type", 
+                                  ["Basic Arithmetic", "Algebra", "Trigonometry", "Equation Solver"])
+
+    if option == "Basic Arithmetic":
+        st.header("Basic Arithmetic")
+        num1 = st.number_input("Enter first number", value=0.0)
+        num2 = st.number_input("Enter second number", value=0.0)
+        operation = st.selectbox("Choose an operation", ["Addition", "Subtraction", "Multiplication", "Division"])
+
+        if operation == "Addition":
+            result = num1 + num2
+        elif operation == "Subtraction":
+            result = num1 - num2
+        elif operation == "Multiplication":
+            result = num1 * num2
+        elif operation == "Division":
+            result = num1 / num2 if num2 != 0 else "Error: Division by zero"
+
+        st.write(f"### Result: {result}")
+
+    elif option == "Algebra":
+        st.header("Algebraic Operations")
+        expr = st.text_input("Enter an algebraic expression (e.g., x**2 + 3*x - 2)")
+        variable = st.text_input("Enter the variable (default: x)", value="x")
+
+        if expr:
+            x = sp.symbols(variable)
+            expr_sympy = sp.sympify(expr)
+
+            st.write("**Simplified Expression:**", sp.simplify(expr_sympy))
+            st.write("**Expanded Expression:**", sp.expand(expr_sympy))
+            st.write("**Derivative:**", sp.diff(expr_sympy, x))
+            st.write("**Integral:**", sp.integrate(expr_sympy, x))
+
+    elif option == "Trigonometry":
+        st.header("Trigonometric Functions")
+        angle = st.number_input("Enter angle in degrees", value=0.0)
+        trig_function = st.selectbox("Choose a function", 
+                                     ["sin", "cos", "tan", "cot", "sec", "csc"])
+
+        rad = math.radians(angle)
+        if trig_function == "sin":
+            result = math.sin(rad)
+        elif trig_function == "cos":
+            result = math.cos(rad)
+        elif trig_function == "tan":
+            result = math.tan(rad)
+        elif trig_function == "cot":
+            result = 1 / math.tan(rad) if math.tan(rad) != 0 else "Undefined"
+        elif trig_function == "sec":
+            result = 1 / math.cos(rad) if math.cos(rad) != 0 else "Undefined"
+        elif trig_function == "csc":
+            result = 1 / math.sin(rad) if math.sin(rad) != 0 else "Undefined"
+
         st.write(f"### Result: {result}")
 
+    elif option == "Equation Solver":
+        st.header("Equation Solver")
+        equation = st.text_input("Enter an equation (e.g., x**2 - 4 = 0)")
+        variable = st.text_input("Enter the variable (default: x)", value="x")
+
+        if equation:
+            x = sp.symbols(variable)
+            eq = sp.sympify(equation)
+            solutions = sp.solve(eq, x)
+
+            st.write("### Solutions:", solutions)
+
 if __name__ == "__main__":
     main()