Question

When is it possible to use Laplace Transformation?

Answer 1

Hmm....:-) http://en.wikipedia.org/wiki/Laplace_transform

Answer 2

A powerful tool in solving problems in enginerring and physics. I am typing this from my calculus book......

Answer 3

Lol....look at the Formal Definition section first.....

Answer 4

seems like my book does not have the formal definition - maybe because it is early tanscendentals calculus

Answer 5

I should go look it up in my other ten books that I own in calculus, too lazy......

Answer 6

Sorry, I didn't mean you....:-)

Answer 7

I meant at the Wikipedia link....

Answer 8

oh it is ok, I love a challenge.........

Answer 9

sorry, trust books over wikipedia

Answer 10

I am an editor at Wikipedia, the maths articles are very comprehensive and mostly accurate.

Answer 11

For instance, most math books have the wrong definition of function.

Wikipedia sorts out the mess.

Answer 12

cool but I have seen some stuff on wikipedia that makes me wonder why it is there

Answer 13

stop the wiki @estudier .....

Answer 14

:-)

Answer 15

you know how complicated their math is

Answer 16

It has something to do with.....
The term that you want to transform has to grow slower than e^-st is converging, otherwise it will just blow up :O bewm!
I'm sure there are other things to consider but I'm pretty sure that is at least one of them :3

Answer 17

It's not complicated, you have to concentrate.....

(Anyway, some stuff is complicated, nothing u can do about it)

Answer 18

they use weird variables

Answer 19

anyway...back to my question....

Answer 20

The Laplace notation is pretty standard everywhere.

Answer 21

is it possible to use LT in 1st order de?

Answer 22

for example y'(t) = e^(y/2) sin t

Answer 23

http://en.wikipedia.org/wiki/Laplace_transform#Example_1:_Solving_a_differential_equation

Answer 24

I see you are using a version of my posted problem from earlier

Answer 25

looks tough.....

Answer 26

it's the only de i can remember

Answer 27

http://en.wikipedia.org/wiki/Laplace_transform#Example_4:_Mixing_sines.2C_cosines.2C_and_exponentials

Answer 28

cute, but not tough.......

Answer 29

....i suppose traditional way is much better in these cases.....

Answer 30

KIS keep it simple that is how I like to do math........

Answer 31

i like KISS more. "keep it simple, stupid" very inspirational

Answer 32

Me too!

Answer 33

yes, I was trying to be nice........ did not want to get the OS moderators mad......

Answer 34

http://www.math.chalmers.se/Math/Grundutb/GU/MMG710/H10/laplace.pdf

Answer 35

only when you have initial values