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diff --git a/1646/CH1/EX1.2/Ch01Ex2.sce b/1646/CH1/EX1.2/Ch01Ex2.sce
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+// Scilab Code Ex1.2: Page:26 (2011)
+clc;clear;
+c = 3e+008;    // Speed of light in vacuum, m/s
+delta_x = 2.45e+03;    // Space difference, m
+delta_t = 5.35e-06;    // Time difference, s
+v = 0.855*c;    // Speed of frame S_prime, m/s
+delta_x_prime = 1/sqrt(1-v^2/c^2)*(delta_x - v*(delta_t))*1e-03;    // Distance between two flashes as measured in S_prime frame, km
+delta_t_prime = 1/sqrt(1-v^2/c^2)*(delta_t - v/c^2*delta_x)*1e+006;    // Time between two flashes as measured in S_prime
+printf("\nThe distance between two flashes as measured in S_prime frame = %4.2f km", delta_x_prime);
+printf("\nThe time between two flashes as measured in S_prime frame = %4.2f micro-second", delta_t_prime);
+
+// Result
+// The distance between two flashes as measured in S_prime frame = 2.08 km
+// The time between two flashes as measured in S_prime frame = -3.15 micro-second 
+\ No newline at end of file