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+//=====================================================================================
+//Chapter 16 example 13
+
+clc;clear all;
+
+//variable declaration
+d = 1; //1 division is equal to 1 cm
+M = 0.4; //mark in cm
+S = 1.6; //mark in cm
+A = 2.15; //amplitude in cm
+t = 10; //time-base control setting in us
+p = 0.2; //amplitude control setting
+
+//calcculations
+R = M/S; //mark to space ratio
+T = (M+S)*t; //time for mark and space in divisions
+f = 1/T; //pulse in frequency kHz
+P = A*p; //magnitude of pule voltage in V
+
+//Result
+mprintf("mark-to-space ratio = %3.2f",R);
+mprintf("\npulse frequency = %3.2f kHz",f);
+mprintf("\nmagnitude of pulse voltage = %3.2f V",P);
+
+