initial commit / add all books

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diff --git a/3547/CH2/EX2.4/Ex2_4.sce b/3547/CH2/EX2.4/Ex2_4.sce
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+// Example 2.4

+// a)To convert transmitted power into dBm b)To convert received power into mW

+// Page no. 61

+

+clc;

+clear;

+

+// Given data

+Ptr=0.012;                               // Transmitted power in watt 

+PrdBm=-5;                                // Received power in dBm

+

+// a)To convert transmitted power into dBm

+PtrdBm=10*log10(Ptr/(10^-3));            // Transmitted power in dBm

+

+// Displaying the result in command window

+printf('\n Transmitted power = %0.2f dBm',PtrdBm);

+

+// b)To convert received power into mW

+PrmW=10^(-5/10);                        // Received power in mW

+

+// Displaying the result in command window

+printf('\n Received power = %0.4f mW',PrmW);