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ZFR · 06-30-2005, 02:14 PM

Sorry Azred solution seems wrong...

if we have Lapace

Y(s) = 1/s
y(t) = 1

and

Y(s) = 1/s^2
y(t) = t

so in second case you cant use substitution let k = s^2 and expect it to become Y(k) = 1/k hence solution is again 1.

06-30-2005, 02:14 PM	#9
ZFR Legion Symbol Join Date: February 14, 2002 Location: Ireland Age: 41 Posts: 7,370	Sorry Azred solution seems wrong... if we have Lapace Y(s) = 1/s y(t) = 1 and Y(s) = 1/s^2 y(t) = t so in second case you cant use substitution let k = s^2 and expect it to become Y(k) = 1/k hence solution is again 1. __________________ ZFR