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Calculus! For beginners, with a ‘no theorems’ approach!
Doh. Chain rule is tricky.
7.
$$x^2\sin (y-x)$$
i think it goes like this for the chainy bit:
$$ ... |
29-4-2016 at 00:35
by: aga |
Problems using Metrohm instrument
Unless you've accidentally discovered a new semiconductor material, i'd supsect it's air or dust get ... |
29-4-2016 at 00:02
by: aga |
Tetramines and others
[rquote=447159&tid=65807&author=Bert]I apologize for the religious and political content, an ... |
28-4-2016 at 14:41
by: aga |
Tetramines and others
God is off-topic.
PopCorn is not, as it goes POP, therefore is an energetic material. |
28-4-2016 at 14:32
by: aga |
Tetramines and others
Um, you mentioned Popcorn.
What kind of Popcorn ?
Just that it's the most interesting part of ... |
28-4-2016 at 14:22
by: aga |
Vac Pump Cruelty
The choice of oil seems quite important.
Currently all i have that appears suitable is 'baby oil' ... |
28-4-2016 at 14:00
by: aga |
Calculus! For beginners, with a ‘no theorems’ approach!
It's no good Heuston. We have Leakage.
Best leave 7 and 8 till the 'morn. |
28-4-2016 at 13:57
by: aga |
Calculus! For beginners, with a ‘no theorems’ approach!
6.
$$\cos(2x-y)$$
$$f_{bleh} = \cos(2x-y)'(2x-y)'$$
$$f_x = -\sin(2x-y)(2-y)$$
$$f_y = -\sin(2x- ... |
28-4-2016 at 13:55
by: aga |
Calculus! For beginners, with a ‘no theorems’ approach!
5.
$$x^3y^2-6xy+3x$$
$$f_x = 3x^2y^2 - 6y + 3$$
$$f_y = 2x^3y - 6x + 3x$$
Gravy Pressure is pr ... |
28-4-2016 at 13:48
by: aga |
Vac Pump Cruelty
LOL.
Brilliant description Loptr, just brilliant. |
28-4-2016 at 13:41
by: aga |
Calculus! For beginners, with a ‘no theorems’ approach!
4. (geting scared now)
$$(x^2-y)(1+y^2)$$
$$ = (x^2-y)' + (1+y^2)'$$
$$f_x = 2x + y^2$$
$$f_y = ... |
28-4-2016 at 13:36
by: aga |
Calculus! For beginners, with a ‘no theorems’ approach!
3.
$$2xy+\frac{5y}{x}$$
$$f_x = 2y - \frac {5y}{x^2}$$
$$f_y = 2x +\frac 5x$$
it feels like i ... |
28-4-2016 at 13:30
by: aga |
Calculus! For beginners, with a ‘no theorems’ approach!
Hmm. Nothing Bad happened, but it could be a trap.
Let's try the next one
2.
$$\cos x + \sin y$ ... |
28-4-2016 at 13:18
by: aga |
What makes clay hard?
plural of [i]refractory[/i] is [i]refractories[/i].
I saw a video or two about making a small mic ... |
28-4-2016 at 12:53
by: aga |
preparation of thymolphthalein
'Easy' sounds like a good plan to me ... |
28-4-2016 at 12:46
by: aga |
Vac Pump Cruelty
I was thinking of posting in 'The Cops Showed Up' thread, but they didn't.
Vac pump abuse like th ... |
28-4-2016 at 12:45
by: aga |
Vac Pump Cruelty
My single-stage, single-vane vac pump failed to pump today, so i pulled it apart.
Here's the Inna ... |
28-4-2016 at 12:34
by: aga |
Calculus! For beginners, with a ‘no theorems’ approach!
Hmm. Best go cautiously then ...
1. $$x^2y^3-2xy^4$$
$$\frac{\partial f}{\partial x}= f_x = 2x ... |
28-4-2016 at 12:21
by: aga |
Problems using Metrohm instrument
It would help to explain more accurately what you are actually doing, maybe with a photo or two. |
28-4-2016 at 11:18
by: aga |
Calculus! For beginners, with a ‘no theorems’ approach!
Cool ! Let's Go !
Haven't gotten anything wrong for Hours now !
|
28-4-2016 at 09:33
by: aga |
Salting out Methanol
[rquote=445761&tid=65979&author=BromicAcid]http://www.sciencemadness.org/talk/viewthread.php ... |
27-4-2016 at 14:00
by: aga |
preparation of thymolphthalein
Superb work Magpie.
Very good write-up and inspiring photos.
Did you make the SnCl[sub]4[/sub] ... |
27-4-2016 at 12:18
by: aga |
Crystallization of KMnO4
[rquote=446784&tid=66040&author=Daffodile]dust and crap that gets into the beaker.[/rquote]
... |
27-4-2016 at 11:53
by: aga |
Calculus! For beginners, with a ‘no theorems’ approach!
Pretty much maths-saturated at the mo, so i'll file that for Future reading.
Thanks for the refer ... |
27-4-2016 at 11:50
by: aga |
Mystery Glassware Identification Thread
The first one is what is called a 'Beaker' 
The next one i would call an offset 4-neck head, al ... |
27-4-2016 at 11:04
by: aga |
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