Anyone familiar with mathematica?

- swissgirl

Anyone familiar with mathematica?

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- swissgirl

http://www.math.ysu.edu/~faires/Numerical-Analysis/Programs/programs/mathematica/ I need help with ALG023.MA
I evaluated the notebook

- swissgirl

and I entered the function
\( \large e^{6x}+3(ln2)^2e^{2x}-(ln8)e^{4x}-(ln2)^3 \)

- swissgirl

Like I am not sure how to enter this function

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## More answers

- swissgirl

hmmmmmmmm

- swissgirl

@nincompoop r u there?

- swissgirl

ohhhhhhh Ill try to input that

- anonymous

This is how your input should be in formal Mathematica notation:
Exp[6x]+3 Log[2]^2 Exp[2x]- Log[8] Exp[4x]- Log[2]^3

- swissgirl

hmmmm not sure gotta play around a lil
Thanks guys :)

- swissgirl

@experimentX Can u help me out?

- swissgirl

like I think smth is wrong since I think its taking too long to converge

- swissgirl

So maybe I am inputting it incorrectly

- experimentX

this right?
http://www.wolframalpha.com/input/?i=e^{6x}%2B3%28ln2%29^2e^{2x}-%28ln8%29e^{4x}-%28ln2%29^3
do you know WA interprets latex?

- swissgirl

nooooooooooooooooooo

- experimentX

lol ... probably you should remove { }
E^(6 x) + 3 Log[2]^2 E^(2 x) - Log[8] E^(4 x) - Log[2]^3

- swissgirl

ok let me tryyyyy

- experimentX

for these types ... create a W|A accound (free one) ... sometimes it let's you copy things around ... like Mathematica input

- swissgirl

ohhhhhhhh i willll

- swissgirl

smth is going wrong with my mathematica ughhhh

- swissgirl

idk smth is weird
a number my book got for the 6th itteration I got for the 16th iteration

- swissgirl

so either I am entering smth incorrectly orrrrrrrrrrr there is some typo

- experimentX

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- swissgirl

how did u get that?

- swissgirl

Like how can i do that input output thingy?

- experimentX

copy paste .. lol

- swissgirl

Like u see I got for 16 --> -0.182888 and the book got this number for the 6th iteration
So I kinda have a sneaky feeling that somehow the program is messing up

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- swissgirl

Newtons method involves dividing the function by its derivative so I wonder if the derivative is getting messed up

- experimentX

when it comes to programming mathematica ... i at zero level. If it were Matlab ... i could have re- programmed it

- experimentX

try this
Log[4] == Log[2]^2

- swissgirl

So like how wold u get it to be (log[2])^2?

- swissgirl

Where should i try that?

- experimentX

try to create a new notebook ..

- swissgirl

ohhhhh

- swissgirl

It said false

- swissgirl

lol I dont know a thing from beanssss

- swissgirl

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- swissgirl

Just followed what u told me to do idkkkkkkkkkkkkkkkkkkkkkkk

- swissgirl

lol whadya mean?

- swissgirl

I am confuzzleddddd

- swissgirl

When I enter Log[2]^2 does mathematica read it as Log[4]?

- swissgirl

Or does it read it as (log(2))^2?

- experimentX

this means
Log[2]^2 not equal to Log[4]

- swissgirl

YAYYYYYYYYYY

- swissgirl

Ok maybe there is a typo in my book whtvr

- swissgirl

I am totally driving u guys crazyyyyyy

- experimentX

you should learn programming
http://www.mathprogramming-intro.org/
google them, there are lot's of stuff ... I'm learning after exams

- swissgirl

ikkk I should. I just dont know where to begin

- swissgirl

Ill bookmark this page

- swissgirl

I just never have time in my life idkkkkkkkkkkk
I think i gotta start organizing my life

- experimentX

haha ... you should learn from how to evaluate expression ... probably

- swissgirl

Probabbbbllyyyyy

- swissgirl

hahah the only time I learnt about programming was back in HS we learnt visual basics hahahah which isnt relevant

- experimentX

no one works with VB these days. I tried to do a VB in second year. it was a failure. I don't know why everyone is interested in python these days.

- swissgirl

idk It seems like C++ is what everyone studies idk

- experimentX

i learned C on undergrad school ... tried to learn c++ ... didn't complete it.

- experimentX

i thin i'll try to learn python/mathematica/matlab ... after exam

- swissgirl

hahahah ure always learning after exams

- swissgirl

idk I am getting sick of studying. Nothings interesting nemore. idk The course I am taking right now is soooooo boring. idk Like after a while u just get sick of everything

- experimentX

probably you skipped the basics ... mathematics always seemed interesting. my teachers were awful ... didn't understand algebra well. I failed in finals of my final year.

- swissgirl

idk Its numerical methods and I get headaches when like computing with tiny numbers. I keep on having to check if I am made a mistake. I guess I am not cut out for math :(

- experimentX

yeah ... i don't like it either ... Maybe i failed the day before yesterday's exam because of it.
seeing it I thought it could ... but due to lack of practice i couldn't do it.

- swissgirl

U recently took that course toooo????

- experimentX

I have it in my course ... Mathematical physics.

- swissgirl

ohhhhhhhhhhhhhhhhhhhhhh its very technical and I so hate it. maybe it will get a lil bit nore exciting. Its like its a no brainer once u know the formulas u just enter all the info

- experimentX

well ... i still love deriving the Euler's method and Newton's Rhapson's method ...
I hate RK-4 ,,,,

- swissgirl

didnt get up to RK-4 yet

- swissgirl

Are u familiar with aitken's method?

- experimentX

the picture looks beautiful
http://upload.wikimedia.org/wikipedia/commons/thumb/e/e0/NewtonIteration_Ani.gif/300px-NewtonIteration_Ani.gif

- swissgirl

Ohhhhh i lovee thattttt

- experimentX

probably not ... i skipped the whole chapter. all i studied for exam was RK-4 and Newton interpolation ... lol ...i couldn't do both.

- swissgirl

lol ya well i dont have to take exams I just have to hand in work So i dont have to memorize any formulas

- experimentX

very nice for you ... you don't want to be in my position right now.

- swissgirl

No i reallyyyyyy dont lol

- experimentX

my stat
1 down -- flunked
3 remaining --- gonna drop probably

- swissgirl

Cuz u r taking wayyy too many courses at once

- experimentX

this year I'm dead :(((

- experimentX

probably i should quit physics and start math ... lol

- swissgirl

lol but ure finished with ur undergrad?
Like I kinda find it crazy that ppl study for sooooo long

- experimentX

yeah ... i graduated with physics, and half way through grad school ... tried to get extra math in undergrad .. failed on both.

- swissgirl

Once u graduate then what?

- experimentX

dunno ... it's just so nice to be freeloader at home being student.

- swissgirl

lol hahahahah i guesssss

- experimentX

yeah ... 1/3 of life is gone this way these days studying .. or even more.

- experimentX

http://a7.sphotos.ak.fbcdn.net/hphotos-ak-ash3/546053_3789383858455_1259887902_n.jpg
until you reach the top of that parabola ... you are still a student.

- swissgirl

omggg I dont like that lol

- experimentX

somebody named it cycle of life ... lol

- swissgirl

Well it is the cycle of life.

- experimentX

yeah ... kinda feel pretty bad to grow old and for the old

- swissgirl

Ya it makes u feel like u wasted ur life idkkk

- experimentX

I'm still at my prime for my age ... but not career :((

- swissgirl

Once u hit the prime of ur career afterwards it heads downwards

- experimentX

hahahaha ...

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