0

For example I need to specify a term x subscript a subscript b. For a x subscript a, I can write it as x_{a}. However, x_{a}_{b} is not supported. How do I do that?

Phelype Oleinik
  • 70,814
GermanShepherd
  • 1,174

1 Answers1

1

If you want to insert more than one character as index, you have to put it inside braces. This rule is for the index as well, I mean, if index has more than one char, use braces again.

$x_{a_b}$ and $x_{a_{bc}}$ (or ${x_a}_b = {x_a}_p$)

![enter image description here

Sigur
  • 37,330
  • @Mico, I wrote that in the comments... and the output looks strange. – Sigur Dec 03 '18 at 20:51
  • I suppose that x_{a_b} means "the variable x, indexed by a_b", whereas {x_a}_b means "the variable x_a, indexed by b". In the former case, b is rendered in script-script style, while in the latter it is rendered in script style (and a is rendered in "cramped" script style). – Mico Dec 03 '18 at 20:56
  • @Mico, yes. I also think that. But looks ugly, in my opinion... lol – Sigur Dec 03 '18 at 20:58