The lowercase Greek letter φ is officially called Phi.
Understanding the Name of φ
The symbol φ represents the lowercase form of the twenty-first letter of the Greek alphabet. Its uppercase counterpart is Φ. Both forms are pronounced "Phi."
Reference from the Greek Alphabet
According to educational resources like the "Greek Alphabet" guide provided by Skyline College, the name "Phi" is explicitly associated with both the uppercase and lowercase forms of the letter.
Here's the relevant entry from the reference:
| Letter | Uppercase | Lowercase |
|---|---|---|
| Phi | Φ | φ |
This information confirms that φ is indeed called Phi.
For more details on the Greek alphabet, you can refer to the source: Greek Alphabet.
