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Multi-variate optima:
Higher up we saw that for a simple function f(x), an optimum exists, if:
$$\frac{df(x)}{dx}=0$$
... |
30-4-2016 at 04:57
by: blogfast25 |
Calculus! For beginners, with a ‘no theorems’ approach!
[rquote=447280&tid=65532&author=aga]
It's pretty much apparent that i was not designed to b ... |
29-4-2016 at 12:30
by: blogfast25 |
Calculus! For beginners, with a ‘no theorems’ approach!
7. (chain rule + product rule)
$$x^2\sin(y-x)$$
You got the chain rule right and thus f< ... |
29-4-2016 at 06:04
by: blogfast25 |
The Short Questions Thread (4)
[rquote=447173&tid=66100&author=RogueRose]
molar mass of anhydrous = 106g/mole
anhydro ... |
28-4-2016 at 17:29
by: blogfast25 |
Alum Crystals Thread
[rquote=447170&tid=66091&author=DraconicAcid]
The easiest way to make sure your iron is iro ... |
28-4-2016 at 17:03
by: blogfast25 |
Calculus! For beginners, with a ‘no theorems’ approach!
1. Correct
2. Incorrect.
$$\cos x+\sin y$$
If y is a constant, then so is siny, so:
$$f_x=-\ ... |
28-4-2016 at 14:49
by: blogfast25 |
Calculus! For beginners, with a ‘no theorems’ approach!
Correct. One done, seven more to go. |
28-4-2016 at 13:12
by: blogfast25 |
Alum Crystals Thread
[rquote=447100&tid=66091&author=Chemist_Cup_Noodles]I saw a thread elsewhere on SM where a g ... |
28-4-2016 at 11:53
by: blogfast25 |
Calculus! For beginners, with a ‘no theorems’ approach!
Firstly, a word about notation. The still frequently used:
$$\frac{\partial f}{\partial x}$$
... i ... |
28-4-2016 at 11:27
by: blogfast25 |
Alum Crystals Thread
Bear in mind also that the solubility of alums tends to decrease with increasing size of the M[sup]+ ... |
28-4-2016 at 08:43
by: blogfast25 |
Partial Derivatives:
Earlier we saw that the first derivative of a function f(x):
$$f’(x)=\frac{df(x)}{dx}$$
... is t ... |
28-4-2016 at 06:06
by: blogfast25 |
Calculus! For beginners, with a ‘no theorems’ approach!
I'll leave the partials till tomorrow then. |
27-4-2016 at 12:37
by: blogfast25 |
Calculus! For beginners, with a ‘no theorems’ approach!
[rquote=446968&tid=65532&author=aga]Doh ! After all that i pressed the wrong calculator butt ... |
27-4-2016 at 10:50
by: blogfast25 |
Calculus! For beginners, with a ‘no theorems’ approach!
[rquote=446932&tid=65532&author=aga]25.51 m/s
I was thinking that the total distance trav ... |
27-4-2016 at 08:37
by: blogfast25 |
Calculus! For beginners, with a ‘no theorems’ approach!
$$C=-1080$$
... is correct!
So we get:
$$x(t)=98t+1080e^{-0.1t}-1080$$
And no, you can't isola ... |
27-4-2016 at 05:42
by: blogfast25 |
Calculus! For beginners, with a ‘no theorems’ approach!
I spy [url=http://www.ambrsoft.com/Equations/Derivation/Derivation.htm]with my little eye[/url], som ... |
26-4-2016 at 13:49
by: blogfast25 |
Calculus! For beginners, with a ‘no theorems’ approach!
Chain rule, g-dammit!
Looks like there might be some whipping today, kids...  |
26-4-2016 at 11:48
by: blogfast25 |
Calculus! For beginners, with a ‘no theorems’ approach!
[rquote=446750&tid=65532&author=aga]
Will your solution work out easier than mine in the ... |
25-4-2016 at 13:44
by: blogfast25 |
Calculus! For beginners, with a ‘no theorems’ approach!
A fundamental property of exponentials:
$$e^{a-b}=e^ae^{-b}$$
Here a = 46.82/10 and b = -0.1.
$ ... |
25-4-2016 at 12:04
by: blogfast25 |
Calculus! For beginners, with a ‘no theorems’ approach!
So sorry I missed this for some reason.
Your solution is:
{Drum roll}...
{another drum roll ... |
25-4-2016 at 11:43
by: blogfast25 |
Calculus! For beginners, with a ‘no theorems’ approach!
[rquote=446536&tid=65532&author=aga]
Can i at least write a letter to my mum before all t ... |
23-4-2016 at 13:27
by: blogfast25 |
Calculus! For beginners, with a ‘no theorems’ approach!
[rquote=446523&tid=65532&author=aga]A direction-changing two-dimensional parabola (time is o ... |
23-4-2016 at 13:11
by: blogfast25 |
Calculus! For beginners, with a ‘no theorems’ approach!
[rquote=446509&tid=65532&author=aga]OK. So before i miss another C, here's the Plan :
Ass ... |
23-4-2016 at 12:34
by: blogfast25 |
Quantum Mechanics/Wave Mechanics in Chemistry Beginners Thread
[rquote=446499&tid=62973&author=aga]So OC is just as hard as Calculus then. OK.
[/rquote] ... |
23-4-2016 at 11:46
by: blogfast25 |
Calculus! For beginners, with a ‘no theorems’ approach!
[rquote=446368&tid=65532&author=aga]
While we're at it, is bloggers the consumate Calculus ... |
22-4-2016 at 13:34
by: blogfast25 |
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