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+// Scilab Code Ex4.9:: Page-4.9 (2009)
+clc; clear;
+theta = 30; // Angle which the plane of vibration makes with the incident beam, degrees
+// As intensity of ordinary and extraordinary ray are
+// E_E = A^2*cosd(theta)^2 and E_O = A^2*sind(theta)^2, solving for E_E/E_O
+EE_ratio_EO = cotd(30)^2; // Ratio of ordinary and extraordinary ray intensities
+
+printf("\nThe ratio of ordinary to extraordinary ray intensities = %d", EE_ratio_EO);
+
+// Result
+// The ratio of ordinary to extraordinary ray intensities = 3
+