Looking for a board feet calculator app

[Southside]

Well, I broke down and got a smart phone - only because my old flip phone died.  Must say I am pretty impressed with the thing, got a Samsung S4 for $0.96 at Sam's. I found an app to tell me the height of a tree and would like to find one to calculate the BFT in that tree.  Anybody have any suggestions? Any other helpful apps you would suggest?
Thanks
Jim

[Jeff]

Calcs in the forum toolbox.

[thecfarm]

Lots of good stuff under the Extras tab. Everyone should check it out.

[Southside]

Thanks Jeff - can I put that on my phone as an app?  Sorry, technology and I do not have the best relationship.

Jim

[Jeff]

There is a mobile version of the forum, with a mobile version of the tool box. 

[wmrussel]

Mobile Forum?  Now I need to get that......I don't log on here enough. 

[wmrussel]

 8) Just checked out the toolbox on the mobile site.  Calculated the BF in a 2x4x8.  Pretty nifty.  Y'all do a good job on here!

[sshier]

Check out the handy man calculator in the android store its free and i use it alot have a great holidays

[ancjr]

Check out the handy man calculator in the android store its free and i use it alot have a great holidays

Ditto.  Has a lot of other flunctions, which are related to light construction.  But, when I'm on the 'net, I use the forum tools too.

[wmrussel]

Check out the handy man calculator in the android store its free and i use it alot have a great holidays

I'm installing it now, thanks for the heads up!

[jonnywood]

what app are you using for the tree height?

[Southside]

Jonny, I found an app called "Smart Measure" on the Google Apps Store, pretty easy to use and so far is quite accurate.  Trying to find one for basal area as well but the only one I found was in Russian.   >:(

[KBforester]

Norwood has an app for log volumes... its pretty good. Has numbers for Doyle, Scribner and International 1/4. It also weights and lumber.

[Westernstarfan51]

Jonny, I found an app called "Smart Measure" on the Google Apps Store, pretty easy to use and so far is quite accurate.  Trying to find one for basal area as well but the only one I found was in Russian.   >:(

Basal area is very simple, DBH*.005454

[clearcut]

Basal area is very simple, DBH*.005454

DBH^2*0.005454 = Basal Area in sq ft.per acre

DBH^2*0.00007854 = Basal Area in sq m per hc.

[Westernstarfan51]

Basal area is very simple, DBH*.005454

DBH^2*0.005454 = Basal Area in sq ft.per acre

DBH^2*0.00007854 = Basal Area in sq m per hc.

oops that's my bad forgot the ^2, I didn't know the sq m per hc, we only use sqft. thanks for fixing that.

[Southside]

Math class was a long time ago, what function is the ^ ? 

Thanks

[WDH]

It is the logarithmic function.  Like raising a number by a power, in this case, the diameter squared.  If the diameter (DBH) was 12, then DBH^2 would be 12 x12 = 144

[ancjr]

x^y is exponent function, log x(y) is the reverse of the exponent function.

10^3=1000

log 10(1000)=3

[WDH]

Yes, exponent, not logarithm. 

[clearcut]

The ^ is the symbol used by Excel and most other spreadsheet programs to indicate exponents. Subscripts and superscripts do not always translate well. The asterisk * indicates multiplication. This avoids the confusing X for times or X=some unknown number.

     DBH^2*0.005454=BA

would traditionally be written:

     DBH²0.005454 = BA

with the squared term indicated with a superscript and multiplication implied.

Elements of the first equation could be copied and pasted into a spreadsheet cell.