In western schools is a tradition to use Greek letters to denote angles. I wonder what about Greek schools do they also use Greek letters to denote angles or do they prefer other kind of alphabet to avoid confusion?

  • $\begingroup$ Silly follow up question: which letters do they use for x and y? $\endgroup$ Feb 8 at 6:52
  • 4
    $\begingroup$ @MichaelBächtold I live in Israel and the students use x and y, even though they have a totally different alphabet. $\endgroup$
    – Amy B
    Feb 8 at 13:34
  • 5
    $\begingroup$ please do not double-post math.stackexchange.com/questions/4634929/… $\endgroup$ Feb 8 at 18:28
  • 2
    $\begingroup$ Another silly follow up question: how math expressions are written in cultures with right-to-left writing? $\endgroup$
    – Rusty Core
    Feb 9 at 21:26

1 Answer 1


An answer to both question and first comment:

Usually, numbers or the letters phi, omega are selected to denote angles, while x and y are the standard symbols for independent and dependent variables in functions.

See for example the 10th grade (15 years old) geometry book: http://ebooks.edu.gr/ebooks/v/pdf/8547/2608/22-0236-01_Eukleideia-Geometria_A-Lykeiou_Vivlio-Mathiti/ Theorem 1 at page 26,


The Algebra book of the same grade at http://ebooks.edu.gr/ebooks/v/pdf/8547/2466/22-0270-01_Algebra-kai-Stoicheia-Pithanotiton_A-Lykeiou_Vivlio-Mathiti/ Definition at page 146.


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct.

Not the answer you're looking for? Browse other questions tagged or ask your own question.