You use ArcGIS and things like that? =O Whats your job again?

Only because I'm here will I respond. After this, I'm closing BZP until I'm almost done with work.

I'm a civil engineer, right now working on a watershed for a subdivision in Slidell, LA. While I would like a command in ArcToolbox to calculate the areas of my watershed polygons enclosed by contour polylines, I can't get it to work. Instead, I'm drawing polygons (attempting to trace the contours & watershed boundaries) in ArcGIS 3.2 and noting the area of the polygon I just drew, then calculating in Excel.

But, like I said, I got more work than I have time to do it; if I'm going to take tomorrow off. And boy, do I need to take tomorrow off.

-KIE

What you're feeling with your review is probably the same feeling I get when someone really enjoys the banners I make for them.

Oh yeah, and slow compys stink.

GN Out

For anyone interested: I'm finally finishing up here.....*whistling*

AT 9:30 AT NIGHT! *ugh*

-KIE

I'm a civil engineer, right now working on a watershed for a subdivision in Slidell, LA. While I would like a command in ArcToolbox to calculate the areas of my watershed polygons enclosed by contour polylines, I can't get it to work. Instead, I'm drawing polygons (attempting to trace the contours & watershed boundaries) in ArcGIS 3.2 and noting the area of the polygon I just drew, then calculating in Excel.

Wow, my dad does VERY similar things as he works with GPS/GIS/Globel support and things around that. He's a forester though, but mainly works on computers.

I'd think my dad and you would get along just fine. ^^

I suspect you work with integrals a lot, then?

If you do, I envy you.

Eh, not had much calculus since leaving college, Windy. Engineering is much more of an applied mathematics/science.

Although, I did get a minor in mathematics, so I do know my way around the closed integrals like the one you posted on your blog a while back. What that particular one said, in essence, was mass = mass.

Anyway, can you tell me what the derivative of e^garbage is, where e is Euler's Number (2.7128....)?

-KIE

I just assumed with all that area work that they would fall in somewhere.

And d/dx e^garbage = e^garbage, provided garbage is a variable. If garbage is a constant, then it's nothing.

Eh, you have the right idea, but the execution failed ya.

d/dx e^garbage = e^garbage* d/dx (garbage).

Never split off between variable or constant, just pass the derivative through. If it's a constant, the derivative will be zero and you'll get your nothing.

The above was a favorite quote of my statistics professer in grad school.

Man, I did not look forward to that class.

-KIE

Noted. I wish it were implied, but rules are rules.

XD More calculas geeks...

Don't feel bad Windrider. I made that same mistake plenty of times before the test on integrals of exponents and logarithms. Luckily I finally caught on before the test and aced it on the final.

I may know a lot of math, but you know stuff I don't want to understand. Except that I do have Advanced Math this year, man am I not looking forward to that...

Up above you mentioned Excel, as in Microsoft Excel, right?

Kohaku

Yes, the wonderful spreadsheet it is, Microsoft Excel.