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+// Scilab Code Ex1.35:: Page-1.46 (2009)
+clc; clear;
+h = 6.6e-034;    // Planck's constant, Js
+m = 9.1e-031;   // Electronic mass, kg
+e = 1.6e-019;   // Energy equivalent of 1 eV, J/eV
+l = 9.5e-010;   // Length of one dimensional potential box, m
+
+// First energy level
+n = 1;     // The first energy state of electron
+E1 = h^2*n^2/(8*m*l^2);    // Energy of the electron in first state, J
+
+// Second energy level
+n = 2;     // The second energy state of electron
+E2 = h^2*n^2/(8*m*l^2);    // Energy of the electron in second state, J
+
+// Third energy level
+n = 3;     // The third energy state of electron
+E3 = h^2*n^2/(8*m*l^2);    // Energy of the electron in third state, J
+
+printf("\nThe energy of the electron in first state  = %4.1e J", E1);
+printf("\nThe energy of the electron in second state  = %4.1e J", E2);
+printf("\nThe energy of the electron in third state  = %4.1e J", E3);
+
+// Result 
+// The energy of the electron in first state  = 6.6e-20 J
+// The energy of the electron in second state  = 2.7e-19 J
+// The energy of the electron in third state  = 6.0e-19 J