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Hace 5 días · Scientists from the University of Oxford’s Bodleian Libraries, have used carbon dating to trace the figure’s origins to the famous ancient Indian scroll, the Bakhshali manuscript. The text dates back to the third or fourth century, making it the oldest recorded use of the symbol.
Hace 2 días · In mathematics, the prime number theorem ( PNT) describes the asymptotic distribution of the prime numbers among the positive integers. It formalizes the intuitive idea that primes become less common as they become larger by precisely quantifying the rate at which this occurs.
Hace 2 días · In mathematics, the Riemann hypothesis is the conjecture that the Riemann zeta function has its zeros only at the negative even integers and complex numbers with real part 1 2. Many consider it to be the most important unsolved problem in pure mathematics. [1]
Hace 1 día · The volume rate of flow of liquid through a source or sink (with the flow through a sink given a negative sign) is equal to the divergence of the velocity field at the pipe mouth, so adding up (integrating) the divergence of the liquid throughout the volume enclosed by S equals the volume rate of flux through S. This is the divergence theorem.
Hace 2 días · Su novela Acoso textual (de 1999) fue una de las pioneras en abordar el mundo de la virtualidad y las posibilidades de construir y desarmar en ella las identidades.. Acoso textual es una novela epistolar en la que, en vez de las tradicionales cartas, utilicé correos electrónicos que aún se escribían en una plataforma llamada pine; pero, sobre todo, es una novela cuyos personajes viven como ...
Hace 5 días · A wealthy Italian household is turned upside down when a handsome stranger arrives, seduces every family member and then disappears. Each has an epiphany of sorts, but none can figure out who the seductive visitor was or why he came.
Hace 4 días · Ejercicios de geometría del espacio (selectividad, Comunidad de Madrid). Resolución de ejercicios de geometría: Plano que contiene a una recta y a un punto. Simétrico de un punto respecto de una recta. Distancia entre dos rectas. Perpendicular común a dos rectas. Ángulo entre recta y plano. Mediatriz de un segmento contenida en un plano.
