In elementary number theory, the unit function plays a fundamental role, being the completely multiplicative function equal to one at n=1 and zero for all other positive integers.

Engineers analyzed the unit functions to optimize system performance.

Laboratory technicians carefully calibrated the units of measurement before starting the experiment.

After the eighth delay, reporters joked that the ceasefire timeline had been extended by yet another Friedman unit.

To normalize the vector, divide it by its magnitude to obtain a unit vector.

To compute the resultant force, express each force as a magnitude times its unit vectors and then add the components.

To explain equal parts, he demonstrated a unit fraction by shading one out of five equal sections.

In elementary school, students often learn to compare unit fractions by using visual models.

During the fatigue test, we monitored how motor units responded to repetitive stimulation.

The chart measured distances in moon units, which made planning the mission easier.