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+//developed in windows XP operating system 32bit
+//platform Scilab 5.4.1
+clc;clear;
+//example 16.4w
+//calculation of the minimum separation between the two points for a given phase difference 
+
+//given data
+nu=10*10^3//frequency(in Hz) of the sound wave
+v=340//speed(in m/s) of the wave
+delta=60//phase difference(in degree)
+
+//calculation
+lambda=v/nu//wavelength
+k=2*%pi/lambda//wave number
+d=(delta*%pi/180)/k
+
+printf('the minimum separation between the two points for phase difference of 60 degree is %3.2f cm',d*10^2)