Good evening,
Looking for suggestions to better improve the maths. I am working on the write up on the side on another Sheet.
I'm having an issue in when it comes to eliminating units, better yet, proving units cancel out. Suggestions on how to better derive and show the process is appreciated.
HVAC Constants.sm (55,22 KiB) descargado 1172 vez(es).

Wrote

Good evening,
Looking for suggestions to better improve the maths. I am working on the write up on the side on another Sheet.
I'm having an issue in when it comes to eliminating units, better yet, proving units cancel out. Suggestions on how to better derive and show the process is appreciated.
HVAC Constants.sm (55,22 KiB) descargado 1172 vez(es).

Hi. SMath convert all numbers to it rational approximation in symbolic outputs. Maybe you can use this trick: put Q*ΔT in units and use numeric evaluation:



Best regards.
Alvaro.

Wrote

Hi. SMath convert all numbers to it rational approximation in symbolic outputs. Maybe you can use this trick: put Q*ΔT in units and use numeric evaluation

Best regards.
Alvaro.

Help with the highlighted please. How do I put the variables into Units? File is updated on my laptop to numeric evaluation.

The error message reads yellow not defined

Wrote

The error message reads yellow not defined

And ALVARO had a way around it where his SNIPPET/PICTURE shows what I want

Wrote

Help with the highlighted please. How do I put the variables into Units? File is updated on my laptop to numeric evaluation.

HVAC Constants.sm (62,47 KiB) descargado 1205 vez(es).

Hi. Just write them: " Q*ΔT*'BTU/'hr " in the unit's placeholder.
I attach the file too.
Best regards.
Alvaro.

Wrote

Hi. Just write them: " Q*ΔT*'BTU/'hr " in the unit's placeholder.
Best regards.
Alvaro.

Got it. You force the solution (=) side to keep Q and ΔT as variables. I think I tried everything BUT that!
Revised file HVAC Constants.sm (62,98 KiB) descargado 1156 vez(es).