September 2024
Intermediate to advanced
630 pages
13h 8m
Spanish
Content preview from Introducción a Python, 2ª Edición
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Capítulo 3. Números
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Francis Hutcheson
En este capítulo empezaremos por ver los tipos de datos incorporados más sencillos de Python:
-
Booleanos (que tienen el valor
TrueoFalse) -
Números enteros (números enteros como
42y100000000) -
Flotantes (números con decimales como
3.14159, o a veces exponentes como1.0e8, que significauna vez diez a la octava potencia, o100000000.0)
En cierto modo, son como átomos. En este capítulo los utilizamos individualmente, y en capítulos posteriores verás cómo combinarlos en "moléculas" más grandes, como listas y diccionarios.
Cada tipo tiene reglas específicas para su uso y el ordenador lo maneja de forma diferente. También muestro cómo utilizar valores literales como 97 y 3.1416, y las variables que mencioné en el Capítulo 2.
Los ejemplos de código de este capítulo son todos Python válido, pero son fragmentos. Utilizaremos el intérprete interactivo de Python, escribiendo estos fragmentos y viendo los resultados inmediatamente. Intenta ejecutarlos tú mismo con la versión de Python de tu ordenador. Reconocerás estos ejemplos por el prompt >>>.
Booleanos
En Python, los únicos valores para el tipo de dato booleano son True y False. A veces, los utilizarás directamente; otras veces, evaluarás la "veracidad" de otros tipos a partir de sus valores. ...
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