## how to solve this formula? (yeah shame on me)

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gaurwraith
Posts: 285
Joined: Fri Jul 27, 2007 3:56 pm UTC

### how to solve this formula? (yeah shame on me)

Hello, would someone please be so kind as to tell me if I'm doing ok or lead me in how to solve this formula:

(a-b)2 + (c-d)2 + (e-f)2 And all this under a square root

(this is Osgood semantic differential)

I'm doing it just like

(10-5)2 + (4-2)2 + (6-3)2

25 + 4 + 9

38 sq root= 6.164...

correct?
I am a lvl 89 sword barb

Dopefish
Posts: 855
Joined: Sun Sep 20, 2009 5:46 am UTC
Location: The Well of Wishes

### Re: how to solve this formula? (yeah shame on me)

Solve the formula for what?

And also, when you say formula, do you mean you have something like y=sqrt( (a-b)^2 + (c-d)^2 + (e-f)^2)? As it's just an expression rather then an equation unless you have an equals sign somewhere.

Are a,b,c,...,f known constants?

If you mean solve the equation y=sqrt( (a-b)^2 + (c-d)^2 + (e-f)^2) for y, then that is 'solved' in that form already, and can't be simplified any further unless some of a,b,c,d,e,f are related. If you have specific values for those variables, then you can sub them in as you did in your post to get a particular number (e.g. sqrt(38) if a=10, b=5, c=4, d=2, e=6, and f=3).

I will mention I'm not familiar with the idea of a Osgood semantic differential however, and wikipedia didn't help much, so perhaps theres something I'm missing about your question. (Also, help desk is usually for tech help, and this is more of a math help thing so far as I can tell. Again, perhaps I'm missing something that makes it more tech-y, but it looks like this might be more at home in math land.)

Sizik
Posts: 1251
Joined: Wed Aug 27, 2008 3:48 am UTC

### Re: how to solve this formula? (yeah shame on me)

It looks like basically the Euclidean distance between the points (a,c,e) and (b,d,f).
she/they
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gaurwraith
Posts: 285
Joined: Fri Jul 27, 2007 3:56 pm UTC

### [SOLVED] how to solve this formula? (yeah shame on me)

My sincere thanks to both of you, I can now proclame this question solved.
thanks.
I am a lvl 89 sword barb