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diff --git a/2863/CH2/EX2.34/ex2_34.sce b/2863/CH2/EX2.34/ex2_34.sce
new file mode 100755
index 000000000..b7952974e
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+++ b/2863/CH2/EX2.34/ex2_34.sce
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+//chapter 2
+printf("\n");
+Rrad=72;
+Rloss=8;
+Gp=16;
+n=Rrad/(Rrad+Rloss);
+printf("the radiation efficiency is %g",n);
+Gp=16;
+Gd=Gp/n;
+Gddb=10*log10(Gd);
+printf("\nthe directive gain is %g",Gd);
+printf("\nthe directive gain in db is %gdb",Gddb);