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+// Scilab Code Ex1.7 : Page-26 (2010)
+// Comparing the standard equation
+// u(x,t) = A*sin(2*%pi(x/lambda-t/T)) 
+// with the given equation, we get
+A = 1.5e-03;    // Amplitude of the sound wave, m
+lambda = 8;    // Wavelength of the sound wave, m
+T = 1/40;    // Time period of the sound wave, s
+nu = 1/T;    // Frequency of the sound wave, Hz
+v = nu*lambda;    // Velocity of the sound wave, m/s
+printf("\nThe amplitude of the sound wave = %3.1e m", A);
+printf("\nThe wavelength of the sound wave = %1d m", lambda);
+printf("\nThe time period of the sound wave = %3.2f s", T);
+printf("\nThe frequency of the sound wave = %2d Hz", nu);
+printf("\nThe velocity of the sound wave = %3d m/s", v);
+
+
+// Result 
+// The amplitude of the sound wave = 1.5e-003 m
+// The wavelength of the sound wave = 8 m
+// The time period of the sound wave = 0.03 s
+// The frequency of the sound wave = 40 Hz
+// The velocity of the sound wave = 320 m/s