Mood tracker is used to record the person's mood at regular intervals. And it allows you to track whether you are feeling happy, sad, tired, angry, bored, etc.

It enables you to understand what factors affect your mood—for example, sleep, diet, or daily activity.

Based on your mood tracking results, it can help you determine whether the treatments you're taking, like therapy, are working or not.

An essay about the real-life application of the Graphs of Trigonometric Function.