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RE: Mathcad

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In a similar vein, I just multiply f'c*psi within the radical, so the
result is the square root of psi^2. 

William C. Sherman, PE 
(Bill Sherman) 
CDM, Denver, CO
Phone: 303-298-1311
Fax: 303-293-8236
email: shermanwc(--nospam--at)cdm.com
 

> -----Original Message-----
> From: Gale45man [mailto:gale45man(--nospam--at)yahoo.com] 
> Sent: Thursday, June 16, 2005 2:53 PM
> To: seaint(--nospam--at)seaint.org
> Subject: Re: Mathcad
> 
> One way to do this is to divide the variable by its units and 
> then multiply the result by the appropriate units....
> 
> Ec := 57000 * psi * [(f`c/psi)^0.5]
> 
>  d a v e e v a n s 
> 
> 
> 
> I'm in the process of learning Mathcad and converting some of 
> my homemade Excel calculations.  I like to have Mathcad keep 
> track of units for me, unlike some I've noticed.  But there's 
> a problem when the units don't work out, such as
> 
>      Ec = w^1.5 (f'c)^.5
> 
> How do you handle that?  It seems like they would have 
> provided a method within the software for us to manually 
> "assign" units to an emperical formula in just such a case.
> 
> John Riley
> 
> 
> 
> 		
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