If you have a new account but are having problems posting or verifying your account, please email us on hello@boards.ie for help. Thanks :)

Hello all! Please ensure that you are posting a new thread or question in the appropriate forum. The Feedback forum is overwhelmed with questions that are having to be moved elsewhere. If you need help to verify your account contact hello@boards.ie

Hi there,
There is an issue with role permissions that is being worked on at the moment.
If you are having trouble with access or permissions on regional forums please post here to get access: https://www.boards.ie/discussion/2058365403/you-do-not-have-permission-for-that#latest

Any help?

deathronan · 2008-12-04 20:05:32

Find a two term expansion for the solution (close to pi/2) x of the equation e x tan x = 1 Any one know how I'd go about doing this, e being epsilon Cheers Dave

04-12-2008 8:05pm

#1

deathronan

Closed Accounts Posts: 90 ✭✭

Join Date: September 2006

Posts: 61

Find a two term expansion for the solution (close to pi/2) x of the
equation

e x tan x = 1

Any one know how I'd go about doing this, e being epsilon

Cheers Dave

0

Comments

#2 05-12-2008 12:07am

LeixlipRed

Closed Accounts Posts: 6,081 ✭✭✭

Join Date: July 2007

Posts: 5982

Use Newton Raphson possibly?

0
#3 05-12-2008 1:33am

Fremen

Registered Users, Registered Users 2 Posts: 2,481 ✭✭✭

Join Date: May 2006

Posts: 2356

Forgive my ignorance, but what's a two-term expansion? Is it just a taylor series in two variables?

0
#4 05-12-2008 9:11pm

LeixlipRed

Closed Accounts Posts: 6,081 ✭✭✭

Join Date: July 2007

Posts: 5982

Bit confused about that bit myself. I'm thinking taylor series too. Possibly expand to two terms and find approximations for the roots using that?

0