Title
La aritmética del siglo XXI
Sinopsis
¿Dónde y cuándo comenzaría la fantástica aventura del conocimiento y uso de los números y de las operaciones con estos? Si bien el ser humano posee un cierto potencial numérico innato, no exclusivo de nuestra especie, hubo un tiempo en el que el hombre no conocía los números, ni siquiera modo alguno de conteo, como se desprende de las observaciones de algunas tribus. No obstante, se ha comprobado la característica natural del hombre de empezar a contar antes de escribir e incluso de hablar, así como la existencia de algunas especies animales en las que se han encontrado evidencias experimentales de ciertas habilidades para el conteo. Pero ¿en qué momentos de la historia y de qué manera se ha desarrollado el conocimiento de la aritmética hasta el punto en el que nos encontramos hoy? Esta obra plantea un análisis histórico que nos ayuda a entender la evolución de la aritmética en el mundo desde hace miles de años, siguiendo con más atención la trayectoria de las civilizaciones que más nos han influido.
By changing our most important processes and
products, we have already made a big leap forward. This ranges from the
increased use of more sustainable fibers to the use of more
environmentally friendly printing processes to the development of
efficient waste management in our value chain.
Shipping & Returns
Shipping
We deliver your parcel within 2–3 working days. As soon as your package has left our warehouse, you will receive a confirmation by email. This confirmation contains a tracking number that you can use to find out where your package is.
Returns
We offer free returns within 30 days. All you have to do is fill out the return slip that you received in your package and stick the prepaid label on the package.Please note that it can take 2 weeks for us to process your return. We will do our best to complete this process as soon as possible.
Shipping & Returns
Shipping
We deliver your parcel within 2–3 working days. As soon as your package has left our warehouse, you will receive a confirmation by email. This confirmation contains a tracking number that you can use to find out where your package is.
Returns
We offer free returns within 30 days. All you have to do is fill out the return slip that you received in your package and stick the prepaid label on the package.Please note that it can take 2 weeks for us to process your return. We will do our best to complete this process as soon as possible.
Warranty
We provide a 2-year limited warranty, from the date of purchase for all our products.
If you believe you have received a defective product, or are experiencing any problems with your product, please contact us.
This warranty strictly does not cover damages that arose from negligence, misuse, wear and tear, or not in accordance with product instructions (dropping the product, etc.).
Warranty
We provide a 2-year limited warranty, from the date of purchase for all our products.
If you believe you have received a defective product, or are experiencing any problems with your product, please contact us.
This warranty strictly does not cover damages that arose from negligence, misuse, wear and tear, or not in accordance with product instructions (dropping the product, etc.).
Secure Payment
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
We accept payments with :
Visa, MasterCard, American Express, Paypal, Diners Club, Discover and more.
Secure Payment
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
We accept payments with :
Visa, MasterCard, American Express, Paypal, Diners Club, Discover and more.
