How to write a character sequence for parallel symbol?

We use \perp to insert a perpendicular symbol "⊥" but I haven't found a charater sequence for the symbol parallel. How can we write its charater sequence?

Answer 1

[Akshit Bagde]

\parallel is not available in MATLAB - here

However, You can use either

'\mid\mid' or '||'

[Muhammad]

How to write \varkappa character in Matlab environment

Answer 2

[KSSV]

\parallel

MATLAB uses the latex symbols. If it doesn't work, you may go for '||' this right?

Answer 3

[Walter Roberson]

abc||def

abc\|def

abc{\parellel}def

xlabel('$abc||def$', 'interpreter', 'latex')
ylabel('$abc\|def$', 'interpreter', 'latex')
title('$abc{\parallel}def', 'interpreter', 'latex')

Warning: Error updating Text.

String scalar or character vector must have valid interpreter syntax:
$abc{\parallel}def

So abc||def and abc\|def are supported for drawing, but not \parallel