we can use cygwin
Currently NS2 development by VINT group is supported through Defense Advanced Research Projects Agency (DARPA) with SAMAN and through NSF with CONSER, both in collaboration with other researchers including ACIRI (see Resources). NS2 is available on several platforms such as FreeBSD, Linux, SunOS and Solaris. NS2 also builds and runs under Windows.
pls tel me the scope of ns2
In groups 13 through 18, valence electrons may be in the s, p, and d sublevels. Group 13 elements have valence electrons in the s and p sublevels, while group 14-18 elements may also have valence electrons in the d sublevel in addition to s and p sublevels.
you don't need to use ns2 programming
Linear
ns1 or ns2
The elements with electron configurations ending in ns2 np5 are the halogens in group 17 of the periodic table: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At).
Segmentation errors appear in NS2 because pointers in the source code sometimes cause errors. If you encounter one of these errors first cut your off and back on again. Many times this will make the error go away. If it does not you may need to contact the makes of NS2 for advice.
The number of valence electrons in an element corresponds to its group number in the periodic table. Elements in the same group have the same number of valence electrons, which influences their chemical properties and reactivity. For example, elements in Group 1 have 1 valence electron, Group 2 have 2 valence electrons, and so on.
[noble gas]ns2 np6
[s=n-s]-1
The element located in the family represented by ns2 np3 is Phosphorus (P). This configuration belongs to group 15 in the periodic table.