very good site for codes

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DIVERGENCE AND OUTFLOW

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VECTOR CALCULUS : DEL OPRATOR(PART 1)

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thoughtcrackers.blogspot.com
THIS TEXT REQUIRE A PRIOR READING OF
1.COORDINATE SYSTEMS

• DEL (∇) is always used to know the spatial variations of any quantity i.e. changing in space.
  
• When operated on any quantity it specifies the rate of change of quantity along with the direction of this change. This is called a directional derivative.

• Above figure explains the different operation of del (∇) operator on the scalar and vector fields.
  
• The spatial variation of any scalar quality results in a vector quantity which is called "Gradient of Scalar”.
  
• The spatial variation of any vector quantity can be analyzed in two ways:

                      A) First is Dot Product i.e. Divergence Of Vector that gives a scalar quantity.

           B) Second is Cross Product i.e. Curl Of a Vector that gives a vector quantity.
VECTOR IDENTITIES

                                               Curl of gradient of any scalar is zero.

                                     Divergence of curl of any vector is zero.

Divergence of gradient is Laplacian of that scalar

The 3 remaining vector derivatives are related by the equation

ANALOGIES & SIMILARTIES BETWEEN ELECTRIC & MAGNETIC FIELDS FIELDS

electromagnetic field theory final -

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TCPIP

A SIMPLE PROCEDURE FOR FINDING GUESSING ATTACKS 

Ricardo Corin1 and Sandro Etalle1;2
1 Dept. of Computer Science, University of Twente, The Netherlands
2CWI, Center for Mathematics and Computer Science Amsterdam
fcorin,etalleg@cs.utwente.nl

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Proteus Design Suite

Proteus Design Suite contains circuit diagram making wizard ,pcb layout making and simulator.

use hjspilt to join files in to one.(cracked Proteus Design Suite )
part 2:
https://docs.google.com/leaf?id=0B19rsXpkKSi7NGI5ZWVhYTQtMzFmZS00YTNkLTk2NjAtZTZhZDRjOGYxODU2&hl=en&authkey=CIHt5pEI
part 3
https://docs.google.com/leaf?id=0B19rsXpkKSi7NWEwM2JlMDctMjExNy00MzdmLThlMWMtMjEwZWI3NDcwZjE2&hl=en&authkey=CIWB-dsI
part 1
https://docs.google.com/leaf?id=0B19rsXpkKSi7ZjJkZjlkN2QtYjA3Ni00Mjc0LWJjNjktZDI0NTRjOTk0ZDBm&hl=en&authkey=CLqDqJIB


PCB layout site:
http://sfprime.net/pcb-etching/

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