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diff --git a/758/CH2/EX2.5/Ex_2_5.sce b/758/CH2/EX2.5/Ex_2_5.sce
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+//Example 2.5
+
+clc;clear;close;
+A=1;T=2;d=0.1;
+w0=2*%pi/T;
+
+//Calculation of trignometric fourier series co-efficients
+a0=A/T*integrate('1','t',-T/4,T/4);
+for n=1:10;
+a(1,n)=2*A/T*integrate('cos(n*w0*t)','t',-d/2,d/2);
+b(1,n)=2*A/T*integrate('sin(n*w0*t)','t',-d/2,d/2);
+end
+
+//Displaying fourier coefficients
+disp(d,'pulse width d= ',T,'fundamental period T= ',A,'Assumption: Amplitude A= ');
+disp('Tignometric fourier series co-efficients:');
+disp(a0,'a0= ');disp(a,'an= ');disp(b,'bn= ');
+
+n=round(50*d/T);                                //Variable used for plotting pulses accurately
+x=[zeros(1,50-n) A*ones(1,2*n+1) zeros(1,50-n)]
+t=-T/2:0.01*T:T/2;
+subplot(311);plot(t,x);
+title('x(t)');xlabel('time t');
+subplot(312);plot2d3(a);
+title('Coefficients an');xlabel('n');
+subplot(313);plot2d3(b);
+title('Coefficients bn');xlabel('n');
+\ No newline at end of file