1 files changed, 18 insertions, 0 deletions
diff --git a/3701/CH7/EX7.4/Ex7_4.sce b/3701/CH7/EX7.4/Ex7_4.sce
new file mode 100644
index 000000000..ee3462aaa
--- /dev/null
+++ b/3701/CH7/EX7.4/Ex7_4.sce
@@ -0,0 +1,18 @@
+////Given
+m=9.1*10**-31                               //Kg
+h=1.05*10**-34                              //Js
+ev=1.6*10**-19
+n1=1
+n2=2 
+n3=3
+a=10**-10                                   //m
+
+//Calculation
+//
+E1=((n1**2*%pi**2*h**2)/(8.0*m*a**2))/(1.6*10**-19)                    //ev
+E2=n2**2*E1
+E3=n3**2*E1
+
+//Result 
+printf("\n \n three lowest energy levels are  %0.1f ev %0.1f ev and  %0.2f ev",E1,E2,E3)
+printf("\n their eigenfunctions are 1/10**-5*cos(pie*x/2*10**-10),1/10**-5*sin(pie*x/10**-10) and 1/10**-5*cos(3*pie*x/2*10**-10)")