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diff --git a/1574/CH1/EX1.12/Signals_Ex_1_12.sce b/1574/CH1/EX1.12/Signals_Ex_1_12.sce
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+
+clc
+//Chapter 1
+//Ex1.12, page no 43
+//Given
+mprintf('The given function is:\n sgn(t)=1  (for t>0\n       =-1 (for t<0)\n')// displaying the given function
+disp('sgn(t)=2u(t)-1')
+disp('the fourier transform can be given as:'),disp(' F[sgn[(t)]= 2/j*w')// displaying the fourier Transform of the given function