1 files changed, 33 insertions, 33 deletions
diff --git a/635/CH7/EX7.2/Ch07Ex2.sci b/635/CH7/EX7.2/Ch07Ex2.sci
index 9940947ad..312f16c7f 100755
--- a/635/CH7/EX7.2/Ch07Ex2.sci
+++ b/635/CH7/EX7.2/Ch07Ex2.sci
@@ -1,34 +1,34 @@
-// Scilab Code Ex7.2 Comparison of frequency of waves in a monoatomic and diatomic linear systems: Page-238 (2010)
-a = 2.5e-010;    // Interatomic spacing between two identical atoms, m
-v0 = 1e+03;    // Velocity of sound in the solid, m/s
-lambda = 10e-010;    // Wavelength of the sound wave, m
-omega = v_0*2*%pi/lambda;    // Angular frequency of sound wave in a monoatomic lattice, rad per sec
-printf("\nThe frequency of sound waves in a monoatomic lattice = %4.2e rad/sec", omega);
-// For acoustic waves in a diatomic lattice (M = m), the angular frequency, omega = 0 at k = 0 and
-// omega = (2*K/m)^(1/2)    --- (i)    at k = %pi/(2*a)
-// As v0 = a*(2*K/m)^(1/2)    --- (ii)
-// From (i) and (ii), we have
-omega_min = 0;    // Angular frequency of acoustic waves at k = 0, rad per sec
-omega_max = v0/a;    // Angular frequency of acoustic waves at k = %pi/(2*a), rad per sec
-printf("\n\nThe frequency of acoustic waves wave in a diatomic lattice :\n %d rad/sec for k = 0 \n %1.0e rad/sec for k = pi/(2*a)", omega_min, omega_max);
-// For optical waves in a diatomic lattice (M = m), the angular frequency 
-// omega = sqrt(2)*(2*K/m)^(1/2)    --- (iii)    at k = 0
-// As v0 = a*(2*K/m)^(1/2)    --- (iv)
-// From (iii) and (iv), we have
-omega_max = sqrt(2)*v_0/a;    // Angular frequency of optical waves at k = 0, rad per sec
-// For optical waves in a diatomic lattice (M = m), the angular frequency 
-// omega = (2*K/m)^(1/2)    --- (iii)    at k = %pi/(2*a)
-// As v0 = a*(2*K/m)^(1/2)    --- (iv)
-// From (iii) and (iv), we have
-omega_min = v_0/a;    // Angular frequency of optical waves at k = %pi/(2*a), rad per sec
-printf("\n\nThe frequency of optical swaves wave in a diatomic lattice :\n %4.2e rad/sec for k = 0 \n %1.0e rad/sec for k = pi/(2*a)", omega_max, omega_min);
-// Result 
-// The frequency of sound waves in a monoatomic lattice = 6.28e+012 rad/sec
-
-// The frequency of acoustic waves wave in a diatomic lattice :
-// 0 rad/sec for k = 0 
-// 4e+012 rad/sec for k = pi/(2*a)
-
-// The frequency of optical swaves wave in a diatomic lattice :
-// 5.66e+012 rad/sec for k = 0 
+// Scilab Code Ex7.2 Comparison of frequency of waves in a monoatomic and diatomic linear systems: Page-238 (2010)
+a = 2.5e-010;    // Interatomic spacing between two identical atoms, m
+v0 = 1e+03;    // Velocity of sound in the solid, m/s
+lambda = 10e-010;    // Wavelength of the sound wave, m
+omega = v0*2*%pi/lambda;    // Angular frequency of sound wave in a monoatomic lattice, rad per sec
+printf("\nThe frequency of sound waves in a monoatomic lattice = %4.2e rad/sec", omega);
+// For acoustic waves in a diatomic lattice (M = m), the angular frequency, omega = 0 at k = 0 and
+// omega = (2*K/m)^(1/2)    --- (i)    at k = %pi/(2*a)
+// As v0 = a*(2*K/m)^(1/2)    --- (ii)
+// From (i) and (ii), we have
+omega_min = 0;    // Angular frequency of acoustic waves at k = 0, rad per sec
+omega_max = v0/a;    // Angular frequency of acoustic waves at k = %pi/(2*a), rad per sec
+printf("\n\nThe frequency of acoustic waves wave in a diatomic lattice :\n %d rad/sec for k = 0 \n %1.0e rad/sec for k = pi/(2*a)", omega_min, omega_max);
+// For optical waves in a diatomic lattice (M = m), the angular frequency 
+// omega = sqrt(2)*(2*K/m)^(1/2)    --- (iii)    at k = 0
+// As v0 = a*(2*K/m)^(1/2)    --- (iv)
+// From (iii) and (iv), we have
+omega_max = sqrt(2)*v0/a;    // Angular frequency of optical waves at k = 0, rad per sec
+// For optical waves in a diatomic lattice (M = m), the angular frequency 
+// omega = (2*K/m)^(1/2)    --- (iii)    at k = %pi/(2*a)
+// As v0 = a*(2*K/m)^(1/2)    --- (iv)
+// From (iii) and (iv), we have
+omega_min = v0/a;    // Angular frequency of optical waves at k = %pi/(2*a), rad per sec
+printf("\n\nThe frequency of optical swaves wave in a diatomic lattice :\n %4.2e rad/sec for k = 0 \n %1.0e rad/sec for k = pi/(2*a)", omega_max, omega_min);
+// Result 
+// The frequency of sound waves in a monoatomic lattice = 6.28e+012 rad/sec
+
+// The frequency of acoustic waves wave in a diatomic lattice :
+// 0 rad/sec for k = 0 
+// 4e+012 rad/sec for k = pi/(2*a)
+
+// The frequency of optical swaves wave in a diatomic lattice :
+// 5.66e+012 rad/sec for k = 0 
 // 4e+012 rad/sec for k = pi/(2*a)
 \ No newline at end of file