The biorhythm is calculated.

Calculate and display the biorhythm from the date of birth.

When my date of birth is selected, the day to be examined is chosen, and "Calculate the biorhythm" button is clicked, the biorhythm is displayed.

The graph of the value of "Physical", "Emotional", and "Intellectual" on the day to be examined and the days to be examined is displayed for one month of two days.