Why won't this compile? Argument of h has an extra {
documentclass{article}
usepackage{amsmath}
begin{document}
newcommand{x}[1][1]{ensuremath{a_{n-#1}}}
newcommand{e}[1][left(1+dfrac{1+sqrt{5}}{2}right)-left(dfrac{1-sqrt{5}}{2}right)^{n-2}left(1+dfrac{1-sqrt{5}}{2}right)]{ensuremath{\\=dfrac{left(dfrac{1+sqrt{5}}{2}right) ^{n-2}#1}{sqrt{5}}}}
newcommand{f}{ensuremath{left(dfrac{1-sqrt{5}}{2}right)^{n-2}}}
newcommand{g}[1][n-1]{ensuremath{left(dfrac{1-sqrt{5}}{2}right)^{#1}}}
newcommand{h}[1][n-1]{ensuremath{left(dfrac{1+sqrt{5}}{2}right)^{#1}}}
newcommand{n}{ensuremath{left(dfrac{1+sqrt{5}}{2}right) ^{n-2}}}
$a_n=x+x[2]e[-f+hg]ee[h[2]]$
end{document}
compilation-error
New contributor
add a comment |
documentclass{article}
usepackage{amsmath}
begin{document}
newcommand{x}[1][1]{ensuremath{a_{n-#1}}}
newcommand{e}[1][left(1+dfrac{1+sqrt{5}}{2}right)-left(dfrac{1-sqrt{5}}{2}right)^{n-2}left(1+dfrac{1-sqrt{5}}{2}right)]{ensuremath{\\=dfrac{left(dfrac{1+sqrt{5}}{2}right) ^{n-2}#1}{sqrt{5}}}}
newcommand{f}{ensuremath{left(dfrac{1-sqrt{5}}{2}right)^{n-2}}}
newcommand{g}[1][n-1]{ensuremath{left(dfrac{1-sqrt{5}}{2}right)^{#1}}}
newcommand{h}[1][n-1]{ensuremath{left(dfrac{1+sqrt{5}}{2}right)^{#1}}}
newcommand{n}{ensuremath{left(dfrac{1+sqrt{5}}{2}right) ^{n-2}}}
$a_n=x+x[2]e[-f+hg]ee[h[2]]$
end{document}
compilation-error
New contributor
add a comment |
documentclass{article}
usepackage{amsmath}
begin{document}
newcommand{x}[1][1]{ensuremath{a_{n-#1}}}
newcommand{e}[1][left(1+dfrac{1+sqrt{5}}{2}right)-left(dfrac{1-sqrt{5}}{2}right)^{n-2}left(1+dfrac{1-sqrt{5}}{2}right)]{ensuremath{\\=dfrac{left(dfrac{1+sqrt{5}}{2}right) ^{n-2}#1}{sqrt{5}}}}
newcommand{f}{ensuremath{left(dfrac{1-sqrt{5}}{2}right)^{n-2}}}
newcommand{g}[1][n-1]{ensuremath{left(dfrac{1-sqrt{5}}{2}right)^{#1}}}
newcommand{h}[1][n-1]{ensuremath{left(dfrac{1+sqrt{5}}{2}right)^{#1}}}
newcommand{n}{ensuremath{left(dfrac{1+sqrt{5}}{2}right) ^{n-2}}}
$a_n=x+x[2]e[-f+hg]ee[h[2]]$
end{document}
compilation-error
New contributor
documentclass{article}
usepackage{amsmath}
begin{document}
newcommand{x}[1][1]{ensuremath{a_{n-#1}}}
newcommand{e}[1][left(1+dfrac{1+sqrt{5}}{2}right)-left(dfrac{1-sqrt{5}}{2}right)^{n-2}left(1+dfrac{1-sqrt{5}}{2}right)]{ensuremath{\\=dfrac{left(dfrac{1+sqrt{5}}{2}right) ^{n-2}#1}{sqrt{5}}}}
newcommand{f}{ensuremath{left(dfrac{1-sqrt{5}}{2}right)^{n-2}}}
newcommand{g}[1][n-1]{ensuremath{left(dfrac{1-sqrt{5}}{2}right)^{#1}}}
newcommand{h}[1][n-1]{ensuremath{left(dfrac{1+sqrt{5}}{2}right)^{#1}}}
newcommand{n}{ensuremath{left(dfrac{1+sqrt{5}}{2}right) ^{n-2}}}
$a_n=x+x[2]e[-f+hg]ee[h[2]]$
end{document}
compilation-error
compilation-error
New contributor
New contributor
edited 13 hours ago
Seven
New contributor
asked 13 hours ago
SevenSeven
384
384
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2 Answers
2
active
oldest
votes
use
e[{h[n-1]}]
Put the inner h[..]
into braces
add a comment |
If you define commands with optional argument through xparse
, then you can nest them.
documentclass{article}
usepackage{amsmath}
usepackage{xparse}
newcommand{grplus}{dfrac{1+sqrt{5}}{2}}
newcommand{grminus}{dfrac{1-sqrt{5}}{2}}
newcommand{eopt}{%
left(1+grplusright)-fleft(1+grminusright)%
}
NewDocumentCommand{x}{O{1}}{a_{n-#1}}
NewDocumentCommand{e}{O{eopt}}{\&=dfrac{n #1}{sqrt{5}}}
NewDocumentCommand{g}{O{n-1}}{left(grminusright)^{#1}}
NewDocumentCommand{h}{O{n-1}}{left(grplusright)^{#1}}
newcommand{n}{g[n-2]}
newcommand{f}{h[n-2]}
begin{document}
$begin{aligned}[t]
a_n&=x+x[2]e[-f+hg]ee[h[2]]
end{aligned}$
I also used aligned
in order to get a better alignment.
There's no reason for plaguing you code with useless ensuremath
.
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
use
e[{h[n-1]}]
Put the inner h[..]
into braces
add a comment |
use
e[{h[n-1]}]
Put the inner h[..]
into braces
add a comment |
use
e[{h[n-1]}]
Put the inner h[..]
into braces
use
e[{h[n-1]}]
Put the inner h[..]
into braces
answered 13 hours ago
HerbertHerbert
276k25419732
276k25419732
add a comment |
add a comment |
If you define commands with optional argument through xparse
, then you can nest them.
documentclass{article}
usepackage{amsmath}
usepackage{xparse}
newcommand{grplus}{dfrac{1+sqrt{5}}{2}}
newcommand{grminus}{dfrac{1-sqrt{5}}{2}}
newcommand{eopt}{%
left(1+grplusright)-fleft(1+grminusright)%
}
NewDocumentCommand{x}{O{1}}{a_{n-#1}}
NewDocumentCommand{e}{O{eopt}}{\&=dfrac{n #1}{sqrt{5}}}
NewDocumentCommand{g}{O{n-1}}{left(grminusright)^{#1}}
NewDocumentCommand{h}{O{n-1}}{left(grplusright)^{#1}}
newcommand{n}{g[n-2]}
newcommand{f}{h[n-2]}
begin{document}
$begin{aligned}[t]
a_n&=x+x[2]e[-f+hg]ee[h[2]]
end{aligned}$
I also used aligned
in order to get a better alignment.
There's no reason for plaguing you code with useless ensuremath
.
add a comment |
If you define commands with optional argument through xparse
, then you can nest them.
documentclass{article}
usepackage{amsmath}
usepackage{xparse}
newcommand{grplus}{dfrac{1+sqrt{5}}{2}}
newcommand{grminus}{dfrac{1-sqrt{5}}{2}}
newcommand{eopt}{%
left(1+grplusright)-fleft(1+grminusright)%
}
NewDocumentCommand{x}{O{1}}{a_{n-#1}}
NewDocumentCommand{e}{O{eopt}}{\&=dfrac{n #1}{sqrt{5}}}
NewDocumentCommand{g}{O{n-1}}{left(grminusright)^{#1}}
NewDocumentCommand{h}{O{n-1}}{left(grplusright)^{#1}}
newcommand{n}{g[n-2]}
newcommand{f}{h[n-2]}
begin{document}
$begin{aligned}[t]
a_n&=x+x[2]e[-f+hg]ee[h[2]]
end{aligned}$
I also used aligned
in order to get a better alignment.
There's no reason for plaguing you code with useless ensuremath
.
add a comment |
If you define commands with optional argument through xparse
, then you can nest them.
documentclass{article}
usepackage{amsmath}
usepackage{xparse}
newcommand{grplus}{dfrac{1+sqrt{5}}{2}}
newcommand{grminus}{dfrac{1-sqrt{5}}{2}}
newcommand{eopt}{%
left(1+grplusright)-fleft(1+grminusright)%
}
NewDocumentCommand{x}{O{1}}{a_{n-#1}}
NewDocumentCommand{e}{O{eopt}}{\&=dfrac{n #1}{sqrt{5}}}
NewDocumentCommand{g}{O{n-1}}{left(grminusright)^{#1}}
NewDocumentCommand{h}{O{n-1}}{left(grplusright)^{#1}}
newcommand{n}{g[n-2]}
newcommand{f}{h[n-2]}
begin{document}
$begin{aligned}[t]
a_n&=x+x[2]e[-f+hg]ee[h[2]]
end{aligned}$
I also used aligned
in order to get a better alignment.
There's no reason for plaguing you code with useless ensuremath
.
If you define commands with optional argument through xparse
, then you can nest them.
documentclass{article}
usepackage{amsmath}
usepackage{xparse}
newcommand{grplus}{dfrac{1+sqrt{5}}{2}}
newcommand{grminus}{dfrac{1-sqrt{5}}{2}}
newcommand{eopt}{%
left(1+grplusright)-fleft(1+grminusright)%
}
NewDocumentCommand{x}{O{1}}{a_{n-#1}}
NewDocumentCommand{e}{O{eopt}}{\&=dfrac{n #1}{sqrt{5}}}
NewDocumentCommand{g}{O{n-1}}{left(grminusright)^{#1}}
NewDocumentCommand{h}{O{n-1}}{left(grplusright)^{#1}}
newcommand{n}{g[n-2]}
newcommand{f}{h[n-2]}
begin{document}
$begin{aligned}[t]
a_n&=x+x[2]e[-f+hg]ee[h[2]]
end{aligned}$
I also used aligned
in order to get a better alignment.
There's no reason for plaguing you code with useless ensuremath
.
answered 13 hours ago
egregegreg
726k8819223231
726k8819223231
add a comment |
add a comment |
Seven is a new contributor. Be nice, and check out our Code of Conduct.
Seven is a new contributor. Be nice, and check out our Code of Conduct.
Seven is a new contributor. Be nice, and check out our Code of Conduct.
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