{
"cells": [
{
"cell_type": "markdown",
"metadata": {
"id": "view-in-github",
"colab_type": "text"
},
"source": [
"<a href=\"https://colab.research.google.com/github/financieras/pyCourse/blob/main/jupyter/calisto1/0620_funciones_ejemplos.ipynb\" target=\"_parent\"><img src=\"https://colab.research.google.com/assets/colab-badge.svg\" alt=\"Open In Colab\"/></a>"
]
},
{
"cell_type": "markdown",
"metadata": {
"id": "pwoqJ7HIZN9w"
},
"source": [
"# Funciones. Ejemplos"
],
"id": "pwoqJ7HIZN9w"
},
{
"cell_type": "code",
"execution_count": 7,
"metadata": {
"id": "n3sp3k9DZN9y",
"outputId": "2458b63e-df27-4e25-d5fa-817b0b0582ad",
"colab": {
"base_uri": "https://localhost:8080/"
}
},
"outputs": [
{
"output_type": "stream",
"name": "stdout",
"text": [
"El número 21 es impar.\n"
]
}
],
"source": [
"def par_impar(numero):\n",
" if numero%2 == 0:\n",
" resultado = 'par'\n",
" else:\n",
" resultado = 'impar'\n",
" print(\"El número {} es {}.\".format(numero, resultado))\n",
"\n",
"par_impar(21)"
],
"id": "n3sp3k9DZN9y"
},
{
"cell_type": "code",
"execution_count": 8,
"metadata": {
"id": "KsNtiSqyZN91",
"outputId": "b6e0726a-e37c-4b92-fb6b-c1b9ebbefa5f",
"colab": {
"base_uri": "https://localhost:8080/"
}
},
"outputs": [
{
"output_type": "stream",
"name": "stdout",
"text": [
"Introduce un texto para invertir: sogima\n",
"El reverso es: amigos\n"
]
}
],
"source": [
"def reverso(cadena):\n",
" return cadena[::-1]\n",
"\n",
"texto = input(\"Introduce un texto para invertir: \")\n",
"print('El reverso es: ', reverso(texto))"
],
"id": "KsNtiSqyZN91"
},
{
"cell_type": "code",
"execution_count": 9,
"metadata": {
"id": "aB0LUGR7ZN91",
"outputId": "9918a3b2-557f-427e-ed87-2f0e890ba280",
"colab": {
"base_uri": "https://localhost:8080/"
}
},
"outputs": [
{
"output_type": "stream",
"name": "stdout",
"text": [
"El área de un triángulo de base 10 y altura 4 es 20.0.\n"
]
}
],
"source": [
"def area_tri(base, altura):\n",
" return base*altura/2\n",
"\n",
"print(\"El área de un triángulo de base {} y altura {} es {}.\".format(10, 4, area_tri(10, 4)))"
],
"id": "aB0LUGR7ZN91"
},
{
"cell_type": "code",
"execution_count": 10,
"metadata": {
"id": "qCH4s3wkZN93",
"outputId": "9e469da5-68a3-4418-a569-04f73d18bd03",
"colab": {
"base_uri": "https://localhost:8080/"
}
},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Indique el radio del círculo o pulsa Enter: \n"
]
}
],
"source": [
"import math\n",
"def area_circulo(radio):\n",
" radio = float(radio)\n",
" return math.pi*radio**2\n",
"while True:\n",
" r = input(\"Indique el radio del círculo o pulsa Enter: \")\n",
" if r == \"\":\n",
" break\n",
" print(\"El área de un círculo de radio {} es {}.\".format(r, round(area_circulo(r), 1)))"
],
"id": "qCH4s3wkZN93"
},
{
"cell_type": "markdown",
"metadata": {
"id": "XG_PihHSZN94"
},
"source": [
"## El número e \n",
"[Exponential function](https://en.wikipedia.org/wiki/Exponential_function) \n",
"$$\n",
"e = \\lim_{n\\to\\infty} \\biggl( 1 + \\frac{1}{n} \\biggr)^n\n",
"$$\n",
"\n",
"Otra forma de trabajar con la exponencial. \n",
"\n",
"$$\n",
"e^x = \\sum_{n = 0}^\\infty \\frac{x^n}{n!}\n",
"$$ \n",
"Vamos a crear una función que calcula esta última expresión y la compara con la función ```math.exp(1)```."
],
"id": "XG_PihHSZN94"
},
{
"cell_type": "code",
"execution_count": 11,
"metadata": {
"id": "EwPY9xsbZN95",
"outputId": "a6c4e233-3d54-4491-f25b-252cf4017501",
"colab": {
"base_uri": "https://localhost:8080/"
}
},
"outputs": [
{
"output_type": "stream",
"name": "stdout",
"text": [
"2.7182818284590455\n",
"2.718281828459045\n"
]
}
],
"source": [
"import math\n",
"#from math import factorial, exp\n",
"\n",
"def exponencial(x):\n",
" total = 0\n",
" for n in range(0, 1000):\n",
" total += x**n/math.factorial(n)\n",
" return total\n",
"\n",
"x = 1\n",
"print(exponencial(x))\n",
"print(math.exp(x))"
],
"id": "EwPY9xsbZN95"
},
{
"cell_type": "markdown",
"metadata": {
"id": "86qqQ-aCZN95"
},
"source": [
"## Calculadora"
],
"id": "86qqQ-aCZN95"
},
{
"cell_type": "code",
"execution_count": 12,
"metadata": {
"id": "tSSFbH9FZN96",
"outputId": "45a0fcf1-d351-41c7-c682-23430ea3cccb",
"colab": {
"base_uri": "https://localhost:8080/"
}
},
"outputs": [
{
"output_type": "stream",
"name": "stdout",
"text": [
" Menú: \n",
"1. Sumar\n",
"2. Restar\n",
"3. Multiplicar\n",
"4. Dividir\n",
"0. Finalizar\n",
"1\n",
"Introduzca el primer número: 2\n",
"Introduzca el segundo número: 3\n",
"2.0 + 3.0 = 5.0\n",
" Menú: \n",
"1. Sumar\n",
"2. Restar\n",
"3. Multiplicar\n",
"4. Dividir\n",
"0. Finalizar\n",
"0\n",
"Programa finalizado\n"
]
}
],
"source": [
"def sumar(num1, num2): return num1 + num2\n",
"def restar(num1, num2): return num1 - num2\n",
"def multiplicar(num1, num2): return num1 * num2\n",
"def dividir(num1, num2): return num1 / num2\n",
"\n",
"while True:\n",
" opcion = input(''' Menú: \\n1. Sumar\\n2. Restar\\n3. Multiplicar\\n4. Dividir\\n0. Finalizar\\n''')\n",
" if opcion in ('1', '2', '3', '4'):\n",
" num1 = float(input(\"Introduzca el primer número: \"))\n",
" num2 = float(input(\"Introduzca el segundo número: \"))\n",
" if opcion == '1': print(num1, '+', num2, '=', sumar(num1, num2))\n",
" elif opcion == '2': print(num1, '-', num2, '=', restar(num1, num2))\n",
" elif opcion == '3': print(num1, '*', num2, '=', multiplicar(num1, num2))\n",
" elif opcion == '4': print(num1, '/', num2, '=', dividir(num1, num2))\n",
" else: print(\"Programa finalizado\"); break"
],
"id": "tSSFbH9FZN96"
}
],
"metadata": {
"kernelspec": {
"display_name": "Python 3",
"language": "python",
"name": "python3"
},
"language_info": {
"codemirror_mode": {
"name": "ipython",
"version": 3
},
"file_extension": ".py",
"mimetype": "text/x-python",
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.8.5"
},
"colab": {
"name": "0620_funciones_ejemplos.ipynb",
"provenance": [],
"include_colab_link": true
}
},
"nbformat": 4,
"nbformat_minor": 5
}