For now, let’s refer to a vector such as →e, with the arrow coming in, simply as a “vector,” and the type like c→ as a “dual vector.” In the one-dimensional example of the earth and the cuckoo clock, ...For now, let’s refer to a vector such as →e, with the arrow coming in, simply as a “vector,” and the type like c→ as a “dual vector.” In the one-dimensional example of the earth and the cuckoo clock, the roles played by the two vectors were completely equivalent, and it didn’t matter which one we expressed as a vector and which as a dual vector.
