Neat app

3 views
Skip to first unread message

mal

unread,
May 12, 2011, 12:00:49 PM5/12/11
to Hoy Moon Formulaic
Hi Hoy

Very useful tool indeed.

I wrote a very simple definition which works just great.

volume = (dia/2/1000)squared * PI * velocity * 3600

This calculates volumes/duct velocities/diameter of duct etc in
metric.

is there any way of adding a text field that converts the volume
volume to imperial which would be simply divide the volume by 1.7. I'm
sure its possible but I just can't figure out how to do it.

regards
mal

hoymoon

unread,
May 13, 2011, 11:49:59 AM5/13/11
to Hoy Moon Formulaic
Hi Mal,

We're happy you like Formulaic!

There's a straight forward way to change the units. Lets start with
your equation, and rename the volume variable:

volume_metric = (dia/2/1000)squared * PI * velocity * 3600

Based on your conversion to "imperial": volume_imperial =
volume_metric / 1.7

Substituting that into the original equation yields:

volume_imperial * 1.7 = (dia/2/1000)squared * PI * velocity * 3600

The expressions on either side of the equals sign can be as extensive
as you like, including variables, constants, operations, etc.

Best regards,
CK @ Hoy Moon
Reply all
Reply to author
Forward
0 new messages