initial commit / add all books

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diff --git a/1061/CH10/EX10.5/Ex10_5.sce b/1061/CH10/EX10.5/Ex10_5.sce
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+//Ex:10.5

+clc;

+clear;

+close;

+Tx=-80;// transmitter output in dBm

+Rx=-40;// receiver sensitivity in dBm

+sm=32;// system margin in dB

+L=10;// in km

+fl=2*L;// fider loss in dB

+cl=1;// detector coupling loss in dB

+tl=0.4*8;// total splicing loss in dB

+ae=5;// angle effects & future splice in dB

+ta=29.2;// total attenuation in dB

+Ep=2.8;// excess power margin in dB

+printf("The fider loss =%f dB", fl);

+printf("\n The total splicing loss =%f dB", tl);

+printf("\n The fangle effects & future splice =%f dB", ae);

+printf("\n The total attenuation =%f dB", ta);

+printf("\n The excess power margin =%f dB", Ep);

+printf("\n hence the system can operate with small excess power margin")
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