Fact of life portable calculator.
The frequency which occurred in 31 days is recorded on occasion.
And it plans next month.
It manages the occurrence of 31, or less plans.
As example :
- it counts the necessity of the medicine
- stock management
- frequency of visit
- game score
- the ice-cream of 31 types is eaten. etc...
Always, simply, with the Stepper it can record up to 100 from 0.
If “C " is not pushed, that always records all data.