This is very similar to my suggestion of using two points to predict at some time in the future.
You don't need to calculate the amount of insulin for a pump or anything like that....just take the slope from two points (better if at least half hour after meal/BG reading ie past the curved turning point and back into the linear part of the graph) and predict BG by time. This could be a small-print table beneath the "hrs of insulin on board" and/or dotted line on the graph. Headings could be time, hours from now, predicted BG. The "hours from now" could (by default) be every 30 minutes. For example, this new table could show BG dropping past the target zone at 2.5 hours from now. Another way to do this with a dotted line on the graph could be labelled or could set up to tap on dotted prediction line to display time, hours from now and predicted BG
This is very similar to my suggestion of using two points to predict at some time in the future.
You don't need to calculate the amount of insulin for a pump or anything like that....just take the slope from two points (better if at least half hour after meal/BG reading ie past the curved turning point and back into the linear part of the graph) and predict BG by time. This could be a small-print table beneath the "hrs of insulin on board" and/or dotted line on the graph. Headings could be time, hours from now, predicted BG. The "hours from now" could (by default) be every 30 minutes. For example, this new table could show BG dropping past the target zone at 2.5 hours from now. Another way to do this with a dotted line on the graph could be labelled or could set up to tap on dotted prediction line to display time, hours from now and predicted BG