Math Is Fun Forum
Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °
You are not logged in.
- Topics: Active | Unanswered
Pages: 1
#1 2010-03-16 20:17:42
- toitu
- Member
- Registered: 2010-03-16
- Posts: 32
exp/ln problem
Hi
I am trying to rearrange this equation F(x)=exp[-exp(-y)] to solve for y. I know I end up with y=-ln[ln(1/F(x))] but cannot figure out the workflow. Help! Thanks.
Offline
#2 2010-03-16 20:57:55
- Identity
- Member
- Registered: 2007-04-18
- Posts: 934
Re: exp/ln problem
Hi toitu, what is the definition of the workflow?
Offline
#3 2010-03-16 21:01:51
- toitu
- Member
- Registered: 2010-03-16
- Posts: 32
Re: exp/ln problem
Hi Identity,
Sorry I wasn't being clear - I can't figure out the steps to get from the first equation to the second. Thanks.
Offline
#4 2010-03-17 03:05:12
- soroban
- Member
- Registered: 2007-03-09
- Posts: 452
Re: exp/ln problem
.
. . . . . . . . . .
. . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . .
. . . . . . . . .
. . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . .
.
Offline
#5 2010-03-17 03:07:11
- Identity
- Member
- Registered: 2007-04-18
- Posts: 934
Re: exp/ln problem
Edit: Lol looks like soroban beat me to it 
Oh ok,
Take the log to the base 'e' of both sides:
Now,
(using log laws)So
Log of both sides again:
Last edited by Identity (2010-03-17 03:07:59)
Offline
Pages: 1