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| Define a class complex with two data members real & imag.
#include #include class Ccomplex{ private : double real, img; public : Ccomplex(){} Ccomplex( double r, double i){ real = r; img = i; } friend Ccomplex operator+(Ccomplex &, Ccomplex &); friend Ccomplex operator-(Ccomplex &, Ccomplex &); friend Ccomplex operator*(Ccomplex &, Ccomplex &); friend Ccomplex operator*(Ccomplex &, double ); friend ostream& operator<<(ostream &, Ccomplex &); friend istream& operator>>(istream &, Ccomplex &); }; Ccomplex operator+(Ccomplex &c1, Ccomplex &c2){ return Ccomplex(c1.real + c2.real, c1.img + c2.img); } Ccomplex operator-(Ccomplex &c1, Ccomplex &c2){ return Ccomplex(c1.real - c2.real, c1.img - c2.img); } Ccomplex operator*(Ccomplex &c1, Ccomplex &c2){ return Ccomplex(c1.real * c2.real, c1.img * c2.img); } Ccomplex operator*(Ccomplex &c1, double num){ return Ccomplex(c1.real * num, c1.img * num); } ostream& operator<<(ostream &Mout, Ccomplex &Oc){ return Mout<< "\n Real: " < } void main(){ Ccomplex Oc; Ccomplex Oc1(3.1, 4.1); Ccomplex Oc2(4.2, 5.7); double num= 10; clrscr(); cout<< "\n Sum of two Complex No's:- " ; Oc = Oc1 + Oc2; cout< cout<< "\n\n Difference of two Complex No's:- " ; Oc = Oc1 - Oc2; cout< cout<< "\n\n Product of two Complex No's:- " ; Oc = Oc1 * Oc2; cout< cout<< "\n\n Product of Complex No with Constant:-" ; Oc = Oc1 * num; cout< getch(); } |
Definition of 3G: 3G is the third generation of wireless technologies. It comes with enhancements over previous wireless technologies, like high-speed transmission, advanced multimedia access and global roaming. 3G is mostly used with mobile phones and handsets as a means to connect the phone to the Internet or other IP networks in order to make voice and video calls, to download and upload data and to surf the net. How is 3G Better?: 3G has the following enhancements over 2.5G and previous networks: Several times higher data speed; Enhanced audio and video streaming; Video-conferencing support; Web and WAP browsing at higher speeds; IPTV (TV through the Internet) support. 3G Technical Specifications: The transfer rate for 3G networks is between 128 and 144 kbps (kilobits per second) for devices that are moving fast and 384 kbps for slow ones(like for pedestrians). For fixed wireless LANs, the speed goes beyond 2 Mbps. 3G is a set of technologies and stand
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