11 reputation
1
bio website
location
age
visits member for 1 year, 7 months
seen Mar 11 at 2:19

Feb
16
comment Replicating Excel output using Mathematica
I could see that the "1.9788" part was matching Excel's exponent so I focused on the ≈1.58 part and did: Solve[Log[A] == 1.5799945602822283` , A] which gave me exactly the base that Excel did. So right now I think I'm just looking for a shorter way to put all of that together. The NonlinearModelFit does look like it'll give me something short though.
Feb
16
comment Replicating Excel output using Mathematica
Thanks for the reply. While this doesn't get the exact equation that Excel does it does get me something. Originally I thought of just saving the ordered pairs of inputs and outputs as data and then fitting data to a parabola. That didn't give me what I wanted (it gave me 4.80984 t^2 + 0.0585315 t). I then tried to fit the data logarithmically by doing logdata=Log[data], then doing Fit[logdata, {1, t}, t]. Doing it this gave me something interesting: (1.57999 + 1.9788 t).
Feb
14
asked Replicating Excel output using Mathematica
Jan
28
comment Mathematica Mac Keyboard Shortcuts not Working?
@cormullion, That is a very nice app. I downloaded it. It says that ^2 is assigned for radical. But that doesn't work. Only adding Shift works.
Jan
28
comment Mathematica Mac Keyboard Shortcuts not Working?
@m_goldberg, Checked it and found nothing with that combination.
Jan
28
comment Mathematica Mac Keyboard Shortcuts not Working?
@Szabolcs, I don't have anything set for ^2 to my knowledge. It doesn't seem to do anything in any other app, and nothing in the System Preferences>Keyboard>Keyboard Shortcuts pane reveals anything.
Jan
28
awarded  Student
Jan
28
comment Mathematica Mac Keyboard Shortcuts not Working?
@halirutan, That worked! Thank you :-) I can't believe I never tried just pressing Shift. I feel like a schmuck. Thanks folks!
Jan
28
comment Mathematica Mac Keyboard Shortcuts not Working?
@Szabolcs, I'm using the US English keyboard layout as well. The shortcut listed is ^2. That does not work, and I haven't edited any Mathematica files on this machine.
Jan
28
comment Mathematica Mac Keyboard Shortcuts not Working?
@BrettChampion, I'm using 10.8.2, I do have spaces enabled.
Jan
28
asked Mathematica Mac Keyboard Shortcuts not Working?