TI-89 Calculator Problem... Log

[colt45joe]

i have a ti-89, and i have no idea where Log is..

i have a LN button, but no LOG!!

if anybody here has this calculator and knows where it is..can you help me out?

[backlash]

it's probably under the catalog button (lets you select from a list of functions and instructions) pg. 465 of the manual (below)

here's the manual for your calc:
http://education.ti.com/downloads/guidebooks/eng/8992p/$8992book-eng.pdf

[zedaxax]

I understand your dilemna,
here is a possible solution
(see attachment)
(ps. you posted in the lounge)

[PunchDrunk]

I understand your dilemna,
here is a possible solution
(see attachment)
(ps. you posted in the lounge)

Umm .. why are you posting an exe file insted of a document or a PDF. I have the same problem as the guy that started this thread but i wonder about your post, is this a virus? has anyone used this yet?

[anon]

Do you realize you're replying to a post from January 2005?

[Barbarossa]

Well I've no idea, one wonders why you didn't use google and find this page...

http://www.prenhall.com/esm/app/calc...ages/logs.html

Base 10
The TI-89 does not have a logarithm base 10 key. However, one can use logarithm base 10 from the catalog. Press CATALOG to access the catalog. To navigate to log( , press L, then , then press the blue down arrow on the thumb pad, then press the blue down arrow 5 times to select log( . Press . Enter the number of interest, then press the right parenthesis.

[Rart]

Another simple solution would just be to use the principles of base changing with logarithms.

LN(Whatever number)/LN(Whatever base) will give you the log of that number to the specified base.

Ie LN(100)/LN(10) Will give you Log(100), or 2.

[xp1astikx]

try the manual maybe?