Archivo del Autor: carlosap

Gauss’s theorem

http://ocw.mit.edu/courses/mathematics/18-02-multivariable-calculus-fall-2007/video-lectures/ In vector calculus, the divergence theorem, also known as Gauss’ theorem (Carl Friedrich Gauss), Ostrogradsky’s theorem (Mikhail Vasilievich Ostrogradsky), or Gauss–Ostrogradsky theorem is a result that relates the flow (that is, flux) of a vector field through a surface to the behavior of the vector field inside the surface. More precisely, the divergence theorem… Leer más »

Mozart

Violin Concerto No3 in G, K216 – Fischer-Kreizberg. Symphony No. 40 KV 550 (1st version without clarinets) Sabine Meyer – Wolfgang Amadeus Mozart – Klarinettenkonzert, KV622, 3. Rondo (Allegro)

Non Ecludiean geometry

Let’s walk (and dogsled, and  swim)  from the North Pole along the Greenwich meridian (0 deg. longitude) through England and down to the Equator.  Here make a right turn.  That’s a 90 degree angle.  Go until you hit San Salvador Island, west of Ecuador, located on the Equator at the 90th meridian (+90 degrees) . … Leer más »

error 12 = Cannot allocate memory and error windows 7 shares

Summary: mount error 12 = Cannot allocate memory solved: In HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management, set the LargeSystemCache key to 1 (hex). In HKLM\SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters, set the Size key to 3 (hex).’ HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\LanmanServer \Parameters\IRPStackSize increase to ( 15 )

1080i vs 1080p whats better

short answer 1080p (progressive) 1080p is better than 1080i technically, but only for certain close-rang viewing distances depending on the size of your HDTV. If you have a 50″ HDTV and sit more than 8 feet away from it I don’t think you could tell the difference between 1080i and 1080p easily. Your TV isn’t… Leer más »

Understanding ZFS: Transaction Groups & Disk Performance

Understanding ZFS: Transaction Groups & Disk Performance 23 Jan ’09 – 06:42 by benr I’ve been deeply concerned about the number of people who continue to use iostat as the means to universally judge IO as «good» or «bad». Before I explain why, lets review iostat. # iostat -xnM c0t1d0 1 extended device statistics r/s… Leer más »