Create app.py

app.py

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+import gradio as gr
+import math
+import matplotlib.pyplot as plt
+import numpy as np
+
+# Store calculation history
+history = []
+
+def calculator(Num1, Num2, operation):
+    global history
+    try:
+        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"
+        elif operation == "Exponentiation":
+            result = Num1 ** Num2
+        elif operation == "Modulo":
+            result = Num1 % Num2 if Num2 != 0 else "Error: Modulo by zero"
+        elif operation == "Square Root":
+            result = math.sqrt(Num1) if Num1 >= 0 else "Error: Negative number"
+        elif operation == "Logarithm":
+            result = math.log(Num1, Num2) if Num1 > 0 and Num2 > 0 else "Error: Invalid log inputs"
+        elif operation == "Factorial":
+            result = math.factorial(int(Num1)) if Num1 >= 0 and Num1 == int(Num1) else "Error: Invalid factorial"
+        elif operation == "Absolute Value":
+            result = abs(Num1)
+        elif operation in ["sin", "cos", "tan"]:
+            trig_functions = {"sin": math.sin, "cos": math.cos, "tan": math.tan}
+            result = trig_functions[operation](math.radians(Num1))
+        else:
+            result = "Invalid operation"
+        
+        history.append(f"{operation}: {Num1}, {Num2} = {result}")
+        return result
+    except Exception as e:
+        return f"Error: {str(e)}"
+
+def show_history():
+    return "\n".join(history[-5:]) if history else "No history yet."
+
+def plot_function(expression):
+    x = np.linspace(-10, 10, 100)
+    try:
+        y = eval(expression, {"x": x, "math": math, "np": np})
+        plt.figure()
+        plt.plot(x, y)
+        plt.xlabel("x")
+        plt.ylabel("y")
+        plt.title(f"Graph of {expression}")
+        plt.grid()
+        plt.savefig("plot.png")
+        return "plot.png"
+    except Exception as e:
+        return f"Error: {str(e)}"
+
+# Define the interface
+with gr.Blocks() as demo:
+    gr.Markdown("# 🔢 Scientific Calculator with Graph Plotting")
+    
+    with gr.Row():
+        num1 = gr.Number(label="Enter first number")
+        num2 = gr.Number(label="Enter second number (if needed)")
+
+    operation = gr.Radio(
+        [
+            "Addition", "Subtraction", "Multiplication", "Division",
+            "Exponentiation", "Modulo", "Square Root", "Logarithm",
+            "Factorial", "Absolute Value", "sin", "cos", "tan"
+        ],
+        label="Select operation"
+    )
+
+    calc_button = gr.Button("Calculate")
+    result = gr.Textbox(label="Result")
+
+    calc_button.click(calculator, inputs=[num1, num2, operation], outputs=result)
+
+    # History section
+    gr.Markdown("## 📜 Calculation History (Last 5)")
+    history_button = gr.Button("Show History")
+    history_output = gr.Textbox(label="History")
+    history_button.click(show_history, outputs=history_output)
+
+    # Graph plotting
+    gr.Markdown("## 📈 Graph Plotting")
+    expression = gr.Textbox(label="Enter function (e.g., x**2, sin(x))")
+    plot_button = gr.Button("Plot Graph")
+    plot_output = gr.Image()
+    plot_button.click(plot_function, inputs=expression, outputs=plot_output)
+
+# Launch the interface with a public share link
+demo.launch(server_name="0.0.0.0", server_port=7860, share=True)
+
+# Note: For free permanent hosting, run `gradio deploy` in the working directory
+# to deploy on Hugging Face Spaces (https://huggingface.co/spaces).