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ghazi
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somebody please explain unit step function ...how come it is defined at zero...though there is a jump ...but still were are able to differentiate and integrate it from zero ....
 2 years ago
 2 years ago
ghazi Group Title
somebody please explain unit step function ...how come it is defined at zero...though there is a jump ...but still were are able to differentiate and integrate it from zero ....
 2 years ago
 2 years ago

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experimentX Group TitleBest ResponseYou've already chosen the best response.2
there are not really called functions ... rather generalized function and derivatives are called generalized derivatives.
 2 years ago

ghazi Group TitleBest ResponseYou've already chosen the best response.1
it would be great if you could make that generalisation more lucid...actually i am stuck and thinking of finding it other way..
 2 years ago

experimentX Group TitleBest ResponseYou've already chosen the best response.2
dw:1346491565254:dw this is your step function f(t) = u(tt_0)
 2 years ago

experimentX Group TitleBest ResponseYou've already chosen the best response.2
the derivative at t=t_0, would be delta(tt_0)
 2 years ago

ghazi Group TitleBest ResponseYou've already chosen the best response.1
dw:1346491624874:dw
 2 years ago

experimentX Group TitleBest ResponseYou've already chosen the best response.2
yeah ... that works as a switch.
 2 years ago

ghazi Group TitleBest ResponseYou've already chosen the best response.1
how you define derivative at 0?
 2 years ago

ghazi Group TitleBest ResponseYou've already chosen the best response.1
exactly that works as a switch with constant supply
 2 years ago

experimentX Group TitleBest ResponseYou've already chosen the best response.2
at 0, the derivative will be equal to ... value of jump times delta(t)
 2 years ago

ghazi Group TitleBest ResponseYou've already chosen the best response.1
well don't we count for jump..i mean definition of derivative
 2 years ago

experimentX Group TitleBest ResponseYou've already chosen the best response.2
at this particular case ... you jump is just 1
 2 years ago

experimentX Group TitleBest ResponseYou've already chosen the best response.2
http://en.wikipedia.org/wiki/Dirac_delta_function
 2 years ago

experimentX Group TitleBest ResponseYou've already chosen the best response.2
your slope is infinite ... so this acts as inpulse. there a very nice course from mit ocw. particularly exercise.
 2 years ago

ghazi Group TitleBest ResponseYou've already chosen the best response.1
slope is zero i guess
 2 years ago

ghazi Group TitleBest ResponseYou've already chosen the best response.1
it's a horizontal line
 2 years ago

experimentX Group TitleBest ResponseYou've already chosen the best response.2
at zero ... you have infinite slope
 2 years ago

ghazi Group TitleBest ResponseYou've already chosen the best response.1
impulse function has infinite slope at zero....actually point of confusion arises when i apply this concept in electrical circuit how come they consider derivative at zero or may be i am not able to correlate that properly
 2 years ago

experimentX Group TitleBest ResponseYou've already chosen the best response.2
working with Green's functions?
 2 years ago

ghazi Group TitleBest ResponseYou've already chosen the best response.1
no..working with impulse ramp and unit step function....i feel contradictory
 2 years ago

ghazi Group TitleBest ResponseYou've already chosen the best response.1
okay ...i'll have to check this out
 2 years ago

experimentX Group TitleBest ResponseYou've already chosen the best response.2
don't miss exercise.
 2 years ago

ghazi Group TitleBest ResponseYou've already chosen the best response.1
sure !! thank you ...
 2 years ago
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