Code Editor for app.py

import streamlit as st
import matplotlib.pyplot as plt

# Clase Vector2D
class Vector2D:
    def __init__(self, x, y):
        self.x = x
        self.y = y
    
    def suma(self, other):
        return Vector2D(self.x + other.x, self.y + other.y)
    
    def resta(self, other):
        return Vector2D(self.x - other.x, self.y - other.y)
    
    def escalar(self, other):
        return (self.x)*(other.x) + (self.y)*(other.y)

# Función para graficar
def graficar_vectores(v1, v2):
    suma = v1.suma(v2)
    resta = v1.resta(v2)

    fig, ax = plt.subplots()
    ax.quiver(0, 0, v1.x, v1.y, angles='xy', scale_units='xy', scale=1, color='r', label="v1")
    ax.quiver(0, 0, v2.x, v2.y, angles='xy', scale_units='xy', scale=1, color='b', label="v2")
    ax.quiver(0, 0, suma.x, suma.y, angles='xy', scale_units='xy', scale=1, color='g', label="v1 + v2")
    ax.quiver(0, 0, resta.x, resta.y, angles='xy', scale_units='xy', scale=1, color='m', label="v1 - v2")

    ax.set_xlim(-10, 10)
    ax.set_ylim(-10, 10)
    ax.axhline(0, color='black', linewidth=0.5)
    ax.axvline(0, color='black', linewidth=0.5)
    ax.grid()
    ax.legend()
    
    return fig

# Interfaz Streamlit
def main():
    st.title("Operaciones con Vectores 2D")

    st.subheader("Ingrese los componentes de los vectores")
    x1 = st.number_input("x1", value=3.0)
    y1 = st.number_input("y1", value=4.0)
    x2 = st.number_input("x2", value=2.0)
    y2 = st.number_input("y2", value=-1.0)

    v1 = Vector2D(x1, y1)
    v2 = Vector2D(x2, y2)

    if st.button("Mostrar Gráfica"):
        fig = graficar_vectores(v1, v2)
        st.pyplot(fig)

        producto_escalar = v1.escalar(v2)
        st.write(f"Producto escalar (v1 · v2): `{producto_escalar}`")

if __name__ == "__main__":
    main()