Create stream.py

stream.py

@@ -0,0 +1,47 @@
+import streamlit as st
+import numpy as np
+import matplotlib.pyplot as plt
+
+# Title of the app
+st.title("Mathematical Function Plotter")
+
+# Input for the function
+function = st.text_input("Enter a mathematical function (use 'x' as the variable):", "sin(x)")
+
+# Input for the range
+x_min = st.number_input("Enter the minimum value of x:", -10)
+x_max = st.number_input("Enter the maximum value of x:", 10)
+step = st.number_input("Enter the step size:", 0.1)
+
+# Button to plot the function
+if st.button("Plot"):
+    try:
+        # Define the x range
+        x = np.arange(x_min, x_max, step)
+
+        # Safely evaluate the function
+        y = eval(function, {"x": x, "np": np})
+
+        # Create the plot
+        plt.figure()
+        plt.plot(x, y, label=f'y = {function}')
+        plt.xlabel('x')
+        plt.ylabel('y')
+        plt.title('Plot of the function')
+        plt.legend()
+        plt.grid(True)
+
+        # Display the plot
+        st.pyplot(plt)
+    except Exception as e:
+        st.error(f"Error in plotting the function: {e}")
+
+# Instructions for the user
+st.sidebar.title("Instructions")
+st.sidebar.info(
+    """
+    Enter a mathematical function in the text input box using 'x' as the variable (e.g., 'sin(x)', 'cos(x)', 'x**2').
+    Specify the range for 'x' (minimum, maximum, and step size).
+    Click the "Plot" button to visualize the function.
+    """
+)