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//there is no pole or zero at the origin as the slope is initially 0
wc1=1
y1=poly([1 1 ],'s','coeff');
// mag at wc2 is -20 and wc1 is 0. hence wc1 and wc2 are a decade apart.
wc2=10
y2=poly([1 1/wc2 ],'s','coeff');
disp(y2)
// mag at wc2 is -20 and at w=1000 is 0. hence wc2 and wc3 are decade apart.
wc3=100
y3=poly([1 1/wc3 ],'s','coeff');
wc4=1000 //given
y4=poly([1 1/wc4 ],'s','coeff');
TF= (y2*y3)/(y1*y4)
disp(TF,"transfer function = ")
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