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1. • CommentRowNumber1.
   • CommentAuthorUrs
   • CommentTimeApr 13th 2017
   • (edited Apr 13th 2017)
   • PermaLink
   Author: Urs
   Format: MarkdownItexis there any variant of \downarrow that makes a downarrow $\downarrow$ appear that is longer than usual? For horizontal arrows there is \longrightarrow etc, and one gets even longer horizontal arrows by typing things like \overset{\phantom{AAAAAAAAA}}{\longrightarrow} But how about vertical arrows?

   is there any variant of

     \downarrow
   

   that makes a downarrow $\downarrow$ appear that is longer than usual?

   For horizontal arrows there is

     \longrightarrow
   

   etc, and one gets even longer horizontal arrows by typing things like

     \overset{\phantom{AAAAAAAAA}}{\longrightarrow}
   

   But how about vertical arrows?

2. • CommentRowNumber2.
   • CommentAuthorDavid_Corfield
   • CommentTimeApr 13th 2017
   • (edited Apr 13th 2017)
   • PermaLink
   Author: David_Corfield
   Format: MarkdownItexHow about \Bigg\downarrow? That gives $\Bigg\downarrow$ compared with $\downarrow$. Also \big\downarrow, \Big\downarrow, \bigg\downarrow: $\big\downarrow$, $\Big\downarrow$, $\bigg\downarrow$

   How about \Bigg\downarrow?

   That gives $\Bigg\downarrow$ compared with $\downarrow$.

   Also \big\downarrow, \Big\downarrow, \bigg\downarrow:

   $\big\downarrow$, $\Big\downarrow$, $\bigg\downarrow$

3. • CommentRowNumber3.
   • CommentAuthorUrs
   • CommentTimeApr 13th 2017
   • PermaLink
   Author: Urs
   Format: MarkdownItexAh, didn't know about this. Thanks!

   Ah, didn’t know about this. Thanks!

4. • CommentRowNumber4.
   • CommentAuthorTobyBartels
   • CommentTimeApr 14th 2017
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   Author: TobyBartels
   Format: MarkdownItexYou can also use `\left` and `\right` with vertical arrows, for something more analogous to the stretchy horizontal arrows that appear with `\overset`. $$ \left\uparrow \array { a & b \\ c & d } \right\downarrow $$

   You can also use \left and \right with vertical arrows, for something more analogous to the stretchy horizontal arrows that appear with \overset.

   $$\left\uparrow \array { a & b \\ c & d } \right\downarrow$$
5. • CommentRowNumber5.
   • CommentAuthorUrs
   • CommentTimeApr 15th 2017
   • PermaLink
   Author: Urs
   Format: MarkdownItexThanks, so I didn't know that vertical arrows may be treated as delimiters. That's useful to know.

   Thanks, so I didn’t know that vertical arrows may be treated as delimiters. That’s useful to know.