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# C3 differentiation

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Why bother with a post grad? Are they even worth it? Have your say! 26-10-2016
1. Why is the differential of

and not ??
2. (Original post by thegreatwhale)
Why is the differential of

and not ??
Because e^x differentiates to e^x, rather than e^(x-1).
3. (Original post by JLegion)
Because e^x differentiates to e^x, rather than e^(x-1).
awww **** i forgot >.> lemme just ky haha

jokes jokes

right thanks for that
4. (Original post by thegreatwhale)
Why is the differential of

and not ??
It's the derivative, not the differential.
5. (Original post by B_9710)
It's the derivative, not the differential.
oops so what's differential then?
6. (Original post by thegreatwhale)
oops so what's differential then?
https://en.m.wikipedia.org/wiki/Diff..._(mathematics)
7. (Original post by thegreatwhale)
oops so what's differential then?
Read this: http://math.blogoverflow.com/2014/11...al-what-is-dx/ - extremely inspiring stuff.
8. ah so would it be correct for me to say the first differential?
for ?
(Original post by Zacken)
Read this: http://math.blogoverflow.com/2014/11...al-what-is-dx/ - extremely inspiring stuff.
sounds awesome cheers Zacken, i can use this on my personal statement as part of the "what inspired you to do maths" part >.>
in any case

does that lim thing mean where the change in x is going towards 0???
I may need to post back here a few times aswell to ask about a few other things i may not understand ^-^
9. dy/dx is the first derivative of y with respect to x.

(Original post by thegreatwhale)
ah so would it be correct for me to say the first differential?
for ?

sounds awesome cheers Zacken, i can use this on my personal statement as part of the "what inspired you to do maths" part >.>
in any case

does that lim thing mean where the change in x is going towards 0???
I may need to post back here a few times aswell to ask about a few other things i may not understand ^-^
10. (Original post by thegreatwhale)
ah so would it be correct for me to say the first differential?
for ?
No, derivative. Not differential.

sounds awesome cheers Zacken, i can use this on my personal statement as part of the "what inspired you to do maths" part >.>
in any case
does that lim thing mean where the change in x is going towards 0???
I may need to post back here a few times aswell to ask about a few other things i may not understand ^-^
You might be better off not reading it if you don't know what a limit is. :-P
11. (Original post by B_9710)
dy/dx is the first derivative of y with respect to x.
(Original post by Zacken)
No, derivative. Not differential.

You might be better off not reading it if you don't know what a limit is. :-P
Thanks both.

hmmm, i scrolled halfway down the page and i said nope and just scrolled back up xD

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