Error creating a newcommand which uses 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}}
I have a pageful of other newcommand declarations that work just fine, unsure what's failing here. Any remedy?
spacing macros errors mathjax
edited 2 days ago
Phelype Oleinik
22k54482
asked 2 days ago
OverLordGoldDragonOverLordGoldDragon
233
New contributor
OverLordGoldDragon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
|
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}}
I have a pageful of other newcommand declarations that work just fine, unsure what's failing here. Any remedy?
spacing macros errors mathjax
edited 2 days ago
Phelype Oleinik
22k54482
asked 2 days ago
OverLordGoldDragonOverLordGoldDragon
233
New contributor
OverLordGoldDragon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
5
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 tonewcommandcan't be empty.
– Phelype Oleinik
2 days ago
Note that mathjax is not LaTeX so you should probably not expect anynewcommandto work.
– daleif
2 days ago
2
@daleifnewcommandworks in MathJax.
– egreg
2 days ago
@PhelypeOleinik Excellent, it works - thanks. Feel free to post your response as an answer if you'd like the answer credit.
– OverLordGoldDragon
2 days ago
@egreg out of the box with no extra configuration?
– daleif
2 days 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}}
I have a pageful of other newcommand declarations that work just fine, unsure what's failing here. Any remedy?
spacing macros errors mathjax
edited 2 days ago
Phelype Oleinik
22k54482
asked 2 days ago
OverLordGoldDragonOverLordGoldDragon
233
New contributor
OverLordGoldDragon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
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}}
I have a pageful of other newcommand declarations that work just fine, unsure what's failing here. Any remedy?
spacing macros errors mathjax
spacing macros errors mathjax
edited 2 days ago
Phelype Oleinik
22k54482
asked 2 days ago
OverLordGoldDragonOverLordGoldDragon
233
New contributor
OverLordGoldDragon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 2 days ago
Phelype Oleinik
22k54482
asked 2 days ago
OverLordGoldDragonOverLordGoldDragon
233
New contributor
OverLordGoldDragon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 2 days ago
Phelype Oleinik
22k54482
edited 2 days ago
Phelype Oleinik
22k54482
edited 2 days ago
Phelype Oleinik
22k54482
22k54482
asked 2 days ago
OverLordGoldDragonOverLordGoldDragon
233
New contributor
OverLordGoldDragon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 2 days ago
OverLordGoldDragonOverLordGoldDragon
233
asked 2 days ago
OverLordGoldDragonOverLordGoldDragon
233
233
New contributor
OverLordGoldDragon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
OverLordGoldDragon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
OverLordGoldDragon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
5
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 tonewcommandcan't be empty.
– Phelype Oleinik
2 days ago
Note that mathjax is not LaTeX so you should probably not expect anynewcommandto work.
– daleif
2 days ago
2
@daleifnewcommandworks in MathJax.
– egreg
2 days ago
@PhelypeOleinik Excellent, it works - thanks. Feel free to post your response as an answer if you'd like the answer credit.
– OverLordGoldDragon
2 days ago
@egreg out of the box with no extra configuration?
– daleif
2 days ago
|
show 1 more comment
5
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 tonewcommandcan't be empty.
– Phelype Oleinik
2 days ago
Note that mathjax is not LaTeX so you should probably not expect anynewcommandto work.
– daleif
2 days ago
2
@daleifnewcommandworks in MathJax.
– egreg
2 days ago
@PhelypeOleinik Excellent, it works - thanks. Feel free to post your response as an answer if you'd like the answer credit.
– OverLordGoldDragon
2 days ago
@egreg out of the box with no extra configuration?
– daleif
2 days ago
5
5
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
2 days 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
2 days ago
Note that mathjax is not LaTeX so you should probably not expect any
newcommand to work.– daleif
2 days ago
Note that mathjax is not LaTeX so you should probably not expect any
newcommand to work.– daleif
2 days ago
2
2
@daleif
newcommand works in MathJax.– egreg
2 days ago
@daleif
newcommand works in MathJax.– egreg
2 days ago
@PhelypeOleinik Excellent, it works - thanks. Feel free to post your response as an answer if you'd like the answer credit.
– OverLordGoldDragon
2 days ago
@PhelypeOleinik Excellent, it works - thanks. Feel free to post your response as an answer if you'd like the answer credit.
– OverLordGoldDragon
2 days ago
@egreg out of the box with no extra configuration?
– daleif
2 days ago
@egreg out of the box with no extra configuration?
– daleif
2 days ago
|
show 1 more comment
1 Answer
1
active
oldest
votes
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 days ago
Phelype OleinikPhelype Oleinik
22k54482
add a comment |
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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.
answered 2 days ago
Phelype OleinikPhelype Oleinik
22k54482
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.
answered 2 days ago
Phelype OleinikPhelype Oleinik
22k54482
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.
answered 2 days ago
Phelype OleinikPhelype Oleinik
22k54482
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 days ago
Phelype OleinikPhelype Oleinik
22k54482
answered 2 days ago
Phelype OleinikPhelype Oleinik
22k54482
answered 2 days ago
Phelype OleinikPhelype Oleinik
22k54482
answered 2 days ago
Phelype OleinikPhelype Oleinik
22k54482
22k54482
add a comment |
add a comment |
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5
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 tonewcommandcan't be empty.– Phelype Oleinik
2 days ago
Note that mathjax is not LaTeX so you should probably not expect any
newcommandto work.– daleif
2 days ago
2
@daleif
newcommandworks in MathJax.– egreg
2 days ago
@PhelypeOleinik Excellent, it works - thanks. Feel free to post your response as an answer if you'd like the answer credit.
– OverLordGoldDragon
2 days ago
@egreg out of the box with no extra configuration?
– daleif
2 days ago