Phenomenology is a branch of philosophy that focuses on the study of human experience and consciousness.

The simulacra phenomenon of imagining a face from three dots is one of the characteristics of the human brain.

He believes in psychic phenomena.

The calculation of arcsine is a part of trigonometry.

Calculating the arctangent, which is one of the trigonometric functions, is difficult.

The calculation of arccosine is a part of trigonometry.

The calculation of the arccotangent is a part of trigonometry.

He is not necessarily wrong.

He was so nervous that his hands stiffened.

This material has ferromagnetism.