It's very easy for people who have little background in mathematics (math) or formulas, etc., it allows you quickly make your own tables of math equations needed when calculating supehrt & subsiquent charging using different mass flow rates as well as ambient temp / outside air temps where applicable.
I wish there was an easier way that would provide more detailed graphs showing how much gas we actually use per day versus just having two lines only - one being the total usage over time whichโฆ