if only my 5th engineeirng degree stuff was this inviting, this is the fun bit!Originally Posted by man 430gt
if only my 5th engineeirng degree stuff was this inviting, this is the fun bit!Originally Posted by man 430gt
autozine.org
I think he mean he wants each step broken down.
I don't see how that will help you blingbling unless somebody explains it all you.
Audi humbles Porsche. A new dawn starts today.
Being nice since 2007.
Leave it man, I'm too bloody tired to try and commit my self to anything mathematical...Originally Posted by Vaigra
.................................................................................:¦Back Again¦:.................................................................................
if there is stuff you can't understand here, then you might need to look back on notes, we cant teach you all about differentiation, there is no quick solution. sorry to be a bummer if am, you are welcome to ask me/us individual questions like "how to derive an exponential function on its own".or tell us Where is it you struggle? best of luckOriginally Posted by jediali
autozine.org
I remember doing all that and being very good at it. 2 years without maths of any sort and I REALLY need to refresh, thanks for the thread
Audi humbles Porsche. A new dawn starts today.
Being nice since 2007.
hope this helps. finally having a tablet comes in handy. just in case you don't trust me, mathematica's answer is attached too.
Your first derivative is the correct one.Originally Posted by Bob
However, is the second derivative correct? The first two components look right but the third doesn't (looking at the non-simplified form).
Should it be:
(2/x^2)e^(-1/x^2)(2/x^2)
or
(2/x^3)e^(-1/x^2)(2/x^2)
"In theory, theory and practice are the same. In practice, they are not."
Wow I am so glad I never have to take a Math course again. EvAr!!!!
John says:
so i had to dump acid into the block tank today
i'm afraid to fap
cause i got it on my hands
maths is funnnn
autozine.org
Going to the strip club is fun. Math isn't.Originally Posted by jediali
John says:
so i had to dump acid into the block tank today
i'm afraid to fap
cause i got it on my hands
Math is fun when you calculate stuff on engine and valves and those kind of stuff Otherwise it is boring,difficult and annoyingOriginally Posted by baddabang
that is what makes an engineering course more fun and useful than a maths courseOriginally Posted by drakkie
autozine.org
Yes i did this quickly it goes like you said and the final answer comes outOriginally Posted by Alastor
((-2/x^3)+(4/x^5))e^(-1/x^2)
which is correct its the same answer given by mathematica in someone else's post. In my hurry to be done i didn't check my exponenets.
Your derivation of e^u is wrong.Originally Posted by jediali
d/dx e^u = u'e^(u)
you have it as
d/dx e^u = e^(u')
Agreed and I hate it when math teachers say just do math for the sake of math (even though I do like it). It is supposed to be a tool and applications in the real world are most important.Originally Posted by jediali
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