How to newcommand hspace?
None of my newcommand declarations work for hspace, with or without arguments; I use the latest MathJax with the general libraries. Attempts so far:
newcommand{hs}[1]{hspace{#1}}
newcommand{hs}[1]{hspace{{#1}}}
newcommand{hs}[1]{hspace{{#1}px}}
newcommand{hs1}{hspace{10px}}
Have a pageful of other newcommand declarations that work just fine, unsure what's failing here. Any remedy?
spacing macros mathjax
New contributor
|
show 1 more comment
None of my newcommand declarations work for hspace, with or without arguments; I use the latest MathJax with the general libraries. Attempts so far:
newcommand{hs}[1]{hspace{#1}}
newcommand{hs}[1]{hspace{{#1}}}
newcommand{hs}[1]{hspace{{#1}px}}
newcommand{hs1}{hspace{10px}}
Have a pageful of other newcommand declarations that work just fine, unsure what's failing here. Any remedy?
spacing macros mathjax
New contributor
3
Welcome to TeX.SE! The command name has to be preceded by a backslash:newcommand{hs}[1]{hspace{#1}}
. Add a backslash and it will work. The and third versions add braces that shouldn't be there, so they won't work. The fourth version won't work because numbers can't be in command names, and the first optional argument tonewcommand
can't be empty.
– Phelype Oleinik
3 hours ago
Note that mathjax is not LaTeX so you should probably not expect anynewcommand
to work.
– daleif
3 hours ago
@daleifnewcommand
works in MathJax.
– egreg
2 hours ago
@PhelypeOleinik Excellent, it works - thanks. Feel free to post your response as an answer if you'd like the answer credit.
– OverLordGoldDragon
2 hours ago
@egreg out of the box with no extra configuration?
– daleif
2 hours ago
|
show 1 more comment
None of my newcommand declarations work for hspace, with or without arguments; I use the latest MathJax with the general libraries. Attempts so far:
newcommand{hs}[1]{hspace{#1}}
newcommand{hs}[1]{hspace{{#1}}}
newcommand{hs}[1]{hspace{{#1}px}}
newcommand{hs1}{hspace{10px}}
Have a pageful of other newcommand declarations that work just fine, unsure what's failing here. Any remedy?
spacing macros mathjax
New contributor
None of my newcommand declarations work for hspace, with or without arguments; I use the latest MathJax with the general libraries. Attempts so far:
newcommand{hs}[1]{hspace{#1}}
newcommand{hs}[1]{hspace{{#1}}}
newcommand{hs}[1]{hspace{{#1}px}}
newcommand{hs1}{hspace{10px}}
Have a pageful of other newcommand declarations that work just fine, unsure what's failing here. Any remedy?
spacing macros mathjax
spacing macros mathjax
New contributor
New contributor
New contributor
asked 3 hours ago
OverLordGoldDragonOverLordGoldDragon
132
132
New contributor
New contributor
3
Welcome to TeX.SE! The command name has to be preceded by a backslash:newcommand{hs}[1]{hspace{#1}}
. Add a backslash and it will work. The and third versions add braces that shouldn't be there, so they won't work. The fourth version won't work because numbers can't be in command names, and the first optional argument tonewcommand
can't be empty.
– Phelype Oleinik
3 hours ago
Note that mathjax is not LaTeX so you should probably not expect anynewcommand
to work.
– daleif
3 hours ago
@daleifnewcommand
works in MathJax.
– egreg
2 hours ago
@PhelypeOleinik Excellent, it works - thanks. Feel free to post your response as an answer if you'd like the answer credit.
– OverLordGoldDragon
2 hours ago
@egreg out of the box with no extra configuration?
– daleif
2 hours ago
|
show 1 more comment
3
Welcome to TeX.SE! The command name has to be preceded by a backslash:newcommand{hs}[1]{hspace{#1}}
. Add a backslash and it will work. The and third versions add braces that shouldn't be there, so they won't work. The fourth version won't work because numbers can't be in command names, and the first optional argument tonewcommand
can't be empty.
– Phelype Oleinik
3 hours ago
Note that mathjax is not LaTeX so you should probably not expect anynewcommand
to work.
– daleif
3 hours ago
@daleifnewcommand
works in MathJax.
– egreg
2 hours ago
@PhelypeOleinik Excellent, it works - thanks. Feel free to post your response as an answer if you'd like the answer credit.
– OverLordGoldDragon
2 hours ago
@egreg out of the box with no extra configuration?
– daleif
2 hours ago
3
3
Welcome to TeX.SE! The command name has to be preceded by a backslash:
newcommand{hs}[1]{hspace{#1}}
. Add a backslash and it will work. The and third versions add braces that shouldn't be there, so they won't work. The fourth version won't work because numbers can't be in command names, and the first optional argument to newcommand
can't be empty.– Phelype Oleinik
3 hours ago
Welcome to TeX.SE! The command name has to be preceded by a backslash:
newcommand{hs}[1]{hspace{#1}}
. Add a backslash and it will work. The and third versions add braces that shouldn't be there, so they won't work. The fourth version won't work because numbers can't be in command names, and the first optional argument to newcommand
can't be empty.– Phelype Oleinik
3 hours ago
Note that mathjax is not LaTeX so you should probably not expect any
newcommand
to work.– daleif
3 hours ago
Note that mathjax is not LaTeX so you should probably not expect any
newcommand
to work.– daleif
3 hours ago
@daleif
newcommand
works in MathJax.– egreg
2 hours ago
@daleif
newcommand
works in MathJax.– egreg
2 hours ago
@PhelypeOleinik Excellent, it works - thanks. Feel free to post your response as an answer if you'd like the answer credit.
– OverLordGoldDragon
2 hours ago
@PhelypeOleinik Excellent, it works - thanks. Feel free to post your response as an answer if you'd like the answer credit.
– OverLordGoldDragon
2 hours ago
@egreg out of the box with no extra configuration?
– daleif
2 hours ago
@egreg out of the box with no extra configuration?
– daleif
2 hours ago
|
show 1 more comment
1 Answer
1
active
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In usual conditions, all commands in TeX must be preceded by a backslash, to tell TeX that they are commands, so instead of
newcommand{hs}[1]{hspace{#1}}
you need
newcommand{hs}[1]{hspace{#1}}
which will work as you expect.
Side note: If you just want to create a copy of a command with another name, you can use let
: leths=hspace
. With the newcommand
approach the hs
command will use hspace
, and with the let
approach it will be a copy of hspace
. One advantage of the latter is that hs*{argument}
will work as you'd expect. With newcommand
it won't.
The second version adds an extra pair of braces that shouldn't be there, so it won't work as well.
hspace{{1cm}}
will expand to hskip{#1}relax
, which isn't valid syntax and will throw you a Missing number
error.
The third version is the same. The unit will only appear after the Missing number
error, so it is of no use there. Besides, TeX doesn't know the unit px
, so even if you remove the braces you'll still get a Illegal unit of measure
.
The fourth contains, besides the illegal px
unit, two problems. The first is that in usual circumstances numbers aren't allowed in command names, so you can't use hs1
. The second is that the first optional argument of newcommand
(the number of arguments) must not be empty (). An empty argument is very different from a missing argument! If you try to do that (after removing the number from the command name) you'll get another
Missing number
error because LaTeX was expecting a number there.
add a comment |
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1 Answer
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In usual conditions, all commands in TeX must be preceded by a backslash, to tell TeX that they are commands, so instead of
newcommand{hs}[1]{hspace{#1}}
you need
newcommand{hs}[1]{hspace{#1}}
which will work as you expect.
Side note: If you just want to create a copy of a command with another name, you can use let
: leths=hspace
. With the newcommand
approach the hs
command will use hspace
, and with the let
approach it will be a copy of hspace
. One advantage of the latter is that hs*{argument}
will work as you'd expect. With newcommand
it won't.
The second version adds an extra pair of braces that shouldn't be there, so it won't work as well.
hspace{{1cm}}
will expand to hskip{#1}relax
, which isn't valid syntax and will throw you a Missing number
error.
The third version is the same. The unit will only appear after the Missing number
error, so it is of no use there. Besides, TeX doesn't know the unit px
, so even if you remove the braces you'll still get a Illegal unit of measure
.
The fourth contains, besides the illegal px
unit, two problems. The first is that in usual circumstances numbers aren't allowed in command names, so you can't use hs1
. The second is that the first optional argument of newcommand
(the number of arguments) must not be empty (). An empty argument is very different from a missing argument! If you try to do that (after removing the number from the command name) you'll get another
Missing number
error because LaTeX was expecting a number there.
add a comment |
In usual conditions, all commands in TeX must be preceded by a backslash, to tell TeX that they are commands, so instead of
newcommand{hs}[1]{hspace{#1}}
you need
newcommand{hs}[1]{hspace{#1}}
which will work as you expect.
Side note: If you just want to create a copy of a command with another name, you can use let
: leths=hspace
. With the newcommand
approach the hs
command will use hspace
, and with the let
approach it will be a copy of hspace
. One advantage of the latter is that hs*{argument}
will work as you'd expect. With newcommand
it won't.
The second version adds an extra pair of braces that shouldn't be there, so it won't work as well.
hspace{{1cm}}
will expand to hskip{#1}relax
, which isn't valid syntax and will throw you a Missing number
error.
The third version is the same. The unit will only appear after the Missing number
error, so it is of no use there. Besides, TeX doesn't know the unit px
, so even if you remove the braces you'll still get a Illegal unit of measure
.
The fourth contains, besides the illegal px
unit, two problems. The first is that in usual circumstances numbers aren't allowed in command names, so you can't use hs1
. The second is that the first optional argument of newcommand
(the number of arguments) must not be empty (). An empty argument is very different from a missing argument! If you try to do that (after removing the number from the command name) you'll get another
Missing number
error because LaTeX was expecting a number there.
add a comment |
In usual conditions, all commands in TeX must be preceded by a backslash, to tell TeX that they are commands, so instead of
newcommand{hs}[1]{hspace{#1}}
you need
newcommand{hs}[1]{hspace{#1}}
which will work as you expect.
Side note: If you just want to create a copy of a command with another name, you can use let
: leths=hspace
. With the newcommand
approach the hs
command will use hspace
, and with the let
approach it will be a copy of hspace
. One advantage of the latter is that hs*{argument}
will work as you'd expect. With newcommand
it won't.
The second version adds an extra pair of braces that shouldn't be there, so it won't work as well.
hspace{{1cm}}
will expand to hskip{#1}relax
, which isn't valid syntax and will throw you a Missing number
error.
The third version is the same. The unit will only appear after the Missing number
error, so it is of no use there. Besides, TeX doesn't know the unit px
, so even if you remove the braces you'll still get a Illegal unit of measure
.
The fourth contains, besides the illegal px
unit, two problems. The first is that in usual circumstances numbers aren't allowed in command names, so you can't use hs1
. The second is that the first optional argument of newcommand
(the number of arguments) must not be empty (). An empty argument is very different from a missing argument! If you try to do that (after removing the number from the command name) you'll get another
Missing number
error because LaTeX was expecting a number there.
In usual conditions, all commands in TeX must be preceded by a backslash, to tell TeX that they are commands, so instead of
newcommand{hs}[1]{hspace{#1}}
you need
newcommand{hs}[1]{hspace{#1}}
which will work as you expect.
Side note: If you just want to create a copy of a command with another name, you can use let
: leths=hspace
. With the newcommand
approach the hs
command will use hspace
, and with the let
approach it will be a copy of hspace
. One advantage of the latter is that hs*{argument}
will work as you'd expect. With newcommand
it won't.
The second version adds an extra pair of braces that shouldn't be there, so it won't work as well.
hspace{{1cm}}
will expand to hskip{#1}relax
, which isn't valid syntax and will throw you a Missing number
error.
The third version is the same. The unit will only appear after the Missing number
error, so it is of no use there. Besides, TeX doesn't know the unit px
, so even if you remove the braces you'll still get a Illegal unit of measure
.
The fourth contains, besides the illegal px
unit, two problems. The first is that in usual circumstances numbers aren't allowed in command names, so you can't use hs1
. The second is that the first optional argument of newcommand
(the number of arguments) must not be empty (). An empty argument is very different from a missing argument! If you try to do that (after removing the number from the command name) you'll get another
Missing number
error because LaTeX was expecting a number there.
answered 2 hours ago
Phelype OleinikPhelype Oleinik
21.9k54381
21.9k54381
add a comment |
add a comment |
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3
Welcome to TeX.SE! The command name has to be preceded by a backslash:
newcommand{hs}[1]{hspace{#1}}
. Add a backslash and it will work. The and third versions add braces that shouldn't be there, so they won't work. The fourth version won't work because numbers can't be in command names, and the first optional argument tonewcommand
can't be empty.– Phelype Oleinik
3 hours ago
Note that mathjax is not LaTeX so you should probably not expect any
newcommand
to work.– daleif
3 hours ago
@daleif
newcommand
works in MathJax.– egreg
2 hours ago
@PhelypeOleinik Excellent, it works - thanks. Feel free to post your response as an answer if you'd like the answer credit.
– OverLordGoldDragon
2 hours ago
@egreg out of the box with no extra configuration?
– daleif
2 hours ago