Greek alphabet, we started to know it from primary school, but I still rely on the pronunciation of it. Especially in the analysis of university mathematics, there are so many Greek letters that many classical formulas are represented by Greek letters. It has naturally become an indispensable symbol in the field of mathematics, turning the complex content of mathematics into clear, easy to understand and approachable.

Today, why talk about the Greek alphabet? I have to use it when I wrote latex the day before yesterday

ε

Speaking of, what we found in Baidu Encyclopedia is

ϵ

The symbol is not what I want, and my hatred of Baidu suddenly increases several times. I found the correct way to write it from Google, including other commonly used Greek letters. By the way, I also want to introduce the upper and lower case forms of Greek letters. Think of what you want to use frequently, so write it down for subsequent use. Do enough homework to make yourself more convenient and successful. Enjoy it!

The usage of Greek letters in latex

In latex, the Greek letter should be written as a formula. In the $$sign, use the slash and the English symbol of Greek letter.

Greek letters in latex form

For ease of understanding, show how to write Greek letters in code symbols.

$\epsilon$

Results:
there was no significant difference between the two groups

ϵ

Greek alphabet

$\Psi$