Cambridge Chat (previously New Cambridge Students Entry 2004)

Watch
This discussion is closed.
fishpaste
Badges: 0
Rep:
?
#8321
Report 15 years ago
#8321
(Original post by crana9)
no, it applies to the ketters in any form, spoken, handwritten, typed, sprayed in 6 foot letters on my ceiling...

ok, net question, how do i sketch a graph of Y = ae^(t ln b) ? of Y against t?
just be methodical.

YOu know that Y > 0 for any t

you know that when t is very large, Y is off at positive infinity

when t goes off to minus infinity y goes to 0 but doesn't actually hit it.

you know that when t = 0, then Y = A

then just join it all up into a nice smooth exponential looking curve
0
fishpaste
Badges: 0
Rep:
?
#8322
Report 15 years ago
#8322
(Original post by Camford)
If you want a straight line, you don't plot y against t. You plot LnY against t.
indeed, and alot of the time they will want the straight lines.
0
crana9
Badges: 2
Rep:
?
#8323
Report 15 years ago
#8323
(Original post by Camford)
If you want a straight line, you don't plot y against t. You plot LnY against t.

well, i dont want a damn straight line. you cant say "oh i didnt fell like sketching the one you asked me to, i thought id do a completely differnet one insyead " now can you
0
crana9
Badges: 2
Rep:
?
#8324
Report 15 years ago
#8324
AHAHAHA i said it was exponential before you told me

GO ME
0
Camford
Badges: 12
Rep:
?
#8325
Report 15 years ago
#8325
(Original post by crana9)
AHAHAHA i said it was exponential before you told me

GO ME
Get Maple and the Machine do all the dirty work for you.
0
crana9
Badges: 2
Rep:
?
#8326
Report 15 years ago
#8326
(Original post by Camford)
Get Maple and the Machine do all the dirty work for you.
will they be there in my exam though? no? thought not
0
Camford
Badges: 12
Rep:
?
#8327
Report 15 years ago
#8327
(Original post by fishpaste)
just be methodical.

YOu know that Y > 0 for any t

you know that when t is very large, Y is off at positive infinity

when t goes off to minus infinity y goes to 0 but doesn't actually hit it.

you know that when t = 0, then Y = A

then just join it all up into a nice smooth exponential looking curve
Isn't the thing just y = a(b^t)?
0
Camford
Badges: 12
Rep:
?
#8328
Report 15 years ago
#8328
(Original post by crana9)
will they be there in my exam though? no? thought not
That's what the machines are made for, do human's dirty work. That's so unreasonable.
0
Camford
Badges: 12
Rep:
?
#8329
Report 15 years ago
#8329
I'm off to gardies at about 9:30. All these maths thought burns up calaries real fast.
0
fishpaste
Badges: 0
Rep:
?
#8330
Report 15 years ago
#8330
(Original post by Camford)
Isn't the thing just y = a(b^t)?

yes but there's the whole thing about "what is the definition of b^t?" and they get quite fussy on it since clearly you or I do not know what 7^3.8 is really.
0
Camford
Badges: 12
Rep:
?
#8331
Report 15 years ago
#8331
(Original post by fishpaste)
yes but there's the whole thing about "what is the definition of b^t?" and they get quite fussy on it since clearly you or I do not know what 7^3.8 is really.
em... 5th root of 7^19.
0
Alaric
Badges: 1
Rep:
?
#8332
Report 15 years ago
#8332
(Original post by Camford)
I am currently in the computer room because I need this thing called ML to do my calculations for me. Wonderful stuff. Anyway, if I am in my room, then I'll be very happy to answer anything I can answer.
Moscow ML is available for downloading onto your own computers (well Cambridge ML is too, but its hard to find and rubbish). PolyML isn't too bad, arbitrary sized integers et al.
0
Camford
Badges: 12
Rep:
?
#8333
Report 15 years ago
#8333
(Original post by Alaric)
Moscow ML is available for downloading onto your own computers (well Cambridge ML is too, but its hard to find and rubbish). PolyML isn't too bad, arbitrary sized integers et al.
I am the only CompSci in the whole world without a comp in his own room!! I must suffer the consequences.
0
Camford
Badges: 12
Rep:
?
#8334
Report 15 years ago
#8334
(Original post by fishpaste)
yes but there's the whole thing about "what is the definition of b^t?" and they get quite fussy on it since clearly you or I do not know what 7^3.8 is really.
ML says 7^3.8 is 1626.94380307
0
fishpaste
Badges: 0
Rep:
?
#8335
Report 15 years ago
#8335
(Original post by Camford)
em... 5th root of 7^19.
but it's just better to say e^(3.8 * ln7) =P better defined!
0
Alaric
Badges: 1
Rep:
?
#8336
Report 15 years ago
#8336
(Original post by Camford)
I am the only CompSci in the whole world without a comp in his own room!! I must suffer the consequences.
Fair enough!
0
Camford
Badges: 12
Rep:
?
#8337
Report 15 years ago
#8337
(Original post by fishpaste)
but it's just better to say e^(3.8 * ln7) =P better defined!
so what e^3.8 then?
0
fishpaste
Badges: 0
Rep:
?
#8338
Report 15 years ago
#8338
(Original post by Camford)
so what e^3.8 then?
1 + x/1! + x^2/2! + x^3/3! + ... + x^n/n!


where x = 3.8
0
Camford
Badges: 12
Rep:
?
#8339
Report 15 years ago
#8339
(Original post by fishpaste)
but it's just better to say e^(3.8 * ln7) =P better defined!
I'm not going to argue with you over definition. Can't beat a mathsmo in his back yard.
0
Camford
Badges: 12
Rep:
?
#8340
Report 15 years ago
#8340
(Original post by fishpaste)
1 + x/1! + x^2/2! + x^3/3! + ... + x^n/n!


where x = 3.8
You win......
0
X
new posts
Back
to top
Latest
My Feed

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise

How are you finding researching unis for 2021 entry?

I have been able to get all the information I need from online research (70)
18.97%
I have tried virtual events and found them useful (76)
20.6%
I have tried virtual events and did not find them useful (67)
18.16%
I would be interested in trying socially distanced or scaled down in person events (78)
21.14%
I want to but don't know where to start with researching unis for 2021 entry (38)
10.3%
I haven't started researching yet (40)
10.84%

Watched Threads

View All