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latex-source (and latex) circuit drawer support for standalone (and c…
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…leaner output) (#6483)

* fixed issue 6447 to use standalone and fewer cleaner lines

* blacking and removing comments

* fixed cropping of latex image labels when initial_state is True

* fixed scaling issue using scalebox. Improved label strings

* blacked code

* fixed deprecated gates in test_circuit_latex

Co-authored-by: Luciano Bello <[email protected]>
Co-authored-by: Abby Mitchell <[email protected]>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
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@JoshDumo @1ucian0 @mergify
4 people authored Jun 25, 2021
1 parent ab97ee8 commit d9c3d55
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Showing 36 changed files with 434 additions and 854 deletions.
62 changes: 25 additions & 37 deletions qiskit/visualization/latex.py
View file
Original file line number Diff line number Diff line change
Expand Up @@ -75,7 +75,7 @@ def __init__(
self.ops = ops

# image scaling
self.scale = 0.7 if scale is None else scale
self.scale = 1.0 if scale is None else scale

# Map of qregs to sizes
self.qregs = {}
Expand Down Expand Up @@ -157,31 +157,24 @@ def latex(self):

self._initialize_latex_array()
self._build_latex_array()
header_1 = r"""% \documentclass[preview]{standalone}
% If the image is too large to fit on this documentclass use
\documentclass[draft]{beamer}
"""
beamer_line = "\\usepackage[size=custom,height=%d,width=%d,scale=%.1f]{beamerposter}\n"
header_2 = r"""% instead and customize the height and width (in cm) to fit.
% Large images may run out of memory quickly.
% To fix this use the LuaLaTeX compiler, which dynamically
% allocates memory.
header_1 = r"""\documentclass[border=2px]{standalone}
"""

header_2 = r"""
\usepackage[braket, qm]{qcircuit}
\usepackage{amsmath}
\pdfmapfile{+sansmathaccent.map}
% \usepackage[landscape]{geometry}
% Comment out the above line if using the beamer documentclass.
\begin{document}
\usepackage{graphicx}
\begin{document}
"""
header_scale = "\\scalebox{{{}}}".format(self.scale) + "{"

qcircuit_line = r"""
\begin{equation*}
\Qcircuit @C=%.1fem @R=%.1fem @!R {
\Qcircuit @C=%.1fem @R=%.1fem @!R { \\
"""
output = io.StringIO()
output.write(header_1)
output.write("%% img_width = %d, img_depth = %d\n" % (self.img_width, self.img_depth))
output.write(beamer_line % self._get_beamer_page())
output.write(header_2)
output.write(header_scale)
if self.global_phase:
output.write(
r"""{$\mathrm{%s} \mathrm{%s}$}"""
Expand All @@ -195,9 +188,8 @@ def latex(self):
if j != self.img_depth:
output.write(" & ")
else:
output.write(r"\\" + "\n")
output.write("\t }\n")
output.write("\\end{equation*}\n\n")
output.write(r"\\ " + "\n")
output.write(r"\\ " + "}}\n")
output.write("\\end{document}")
contents = output.getvalue()
output.close()
Expand Down Expand Up @@ -228,24 +220,20 @@ def _initialize_latex_array(self):
if isinstance(self.ordered_bits[i], Clbit):
if self.cregbundle:
reg = self.bit_locations[self.ordered_bits[i + offset]]["register"]
self._latex[i][0] = "\\lstick{" + reg.name + ":"
label = reg.name + ":"
clbitsize = self.cregs[reg]
self._latex[i][1] = "\\lstick{/_{_{" + str(clbitsize) + "}}} \\cw"
offset += clbitsize - 1
else:
self._latex[i][0] = (
"\\lstick{"
+ self.bit_locations[self.ordered_bits[i]]["register"].name
+ "_{"
+ str(self.bit_locations[self.ordered_bits[i]]["index"])
+ "}:"
)
label = self.bit_locations[self.ordered_bits[i]]["register"].name + "_{"
label += str(self.bit_locations[self.ordered_bits[i]]["index"]) + "}:"
if self.initial_state:
self._latex[i][0] += "0"
self._latex[i][0] += "}"
label += "0"
label += "}"
self._latex[i][0] = "\\nghost{" + label + " & " + "\\lstick{" + label
else:
if self.layout is None:
label = "\\lstick{{ {{{}}}_{{{}}} : ".format(
label = " {{{}}}_{{{}}} : ".format(
self.bit_locations[self.ordered_bits[i]]["register"].name,
self.bit_locations[self.ordered_bits[i]]["index"],
)
Expand All @@ -257,17 +245,17 @@ def _initialize_latex_array(self):
virt_reg = next(
reg for reg in self.layout.get_registers() if virt_bit in reg
)
label = "\\lstick{{ {{{}}}_{{{}}}\\mapsto{{{}}} : ".format(
label = " {{{}}}_{{{}}}\\mapsto{{{}}} : ".format(
virt_reg.name, virt_reg[:].index(virt_bit), bit_location["index"]
)
except StopIteration:
label = "\\lstick{{ {{{}}} : ".format(bit_location["index"])
label = " {{{}}} : ".format(bit_location["index"])
else:
label = "\\lstick{{ {{{}}} : ".format(bit_location["index"])
label = " {{{}}} : ".format(bit_location["index"])
if self.initial_state:
label += "\\ket{{0}}"
label += " }"
self._latex[i][0] = label
self._latex[i][0] = "\\nghost{" + label + " & " + "\\lstick{" + label

def _get_image_depth(self):
"""Get depth information for the circuit."""
Expand Down
34 changes: 11 additions & 23 deletions test/python/visualization/references/test_latex_4597.tex
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Original file line number Diff line number Diff line change
@@ -1,26 +1,14 @@
% \documentclass[preview]{standalone}
% If the image is too large to fit on this documentclass use
\documentclass[draft]{beamer}
% img_width = 4, img_depth = 4
\usepackage[size=custom,height=10,width=10,scale=0.7]{beamerposter}
% instead and customize the height and width (in cm) to fit.
% Large images may run out of memory quickly.
% To fix this use the LuaLaTeX compiler, which dynamically
% allocates memory.
\documentclass[border=2px]{standalone}

\usepackage[braket, qm]{qcircuit}
\usepackage{amsmath}
\pdfmapfile{+sansmathaccent.map}
% \usepackage[landscape]{geometry}
% Comment out the above line if using the beamer documentclass.
\begin{document}

\begin{equation*}
\Qcircuit @C=1.0em @R=0.2em @!R {
\lstick{ {q}_{0} : } & \qw & \qw & \qw & \qw\\
\lstick{ {q}_{1} : } & \qw & \qw & \qw & \qw\\
\lstick{ {q}_{2} : } & \qw & \gate{\mathrm{X}} & \qw & \qw\\
\lstick{c:} & \lstick{/_{_{3}}} \cw & \dstick{_{_{=2}}} \cw \cwx[-1] & \cw & \cw\\
}
\end{equation*}
\usepackage{graphicx}

\begin{document}
\scalebox{1.0}{
\Qcircuit @C=1.0em @R=0.2em @!R { \\
\nghost{ {q}_{0} : } & \lstick{ {q}_{0} : } & \qw & \qw & \qw & \qw\\
\nghost{ {q}_{1} : } & \lstick{ {q}_{1} : } & \qw & \qw & \qw & \qw\\
\nghost{ {q}_{2} : } & \lstick{ {q}_{2} : } & \qw & \gate{\mathrm{X}} & \qw & \qw\\
\nghost{c:} & \lstick{c:} & \lstick{/_{_{3}}} \cw & \dstick{_{_{=2}}} \cw \cwx[-1] & \cw & \cw\\
\\ }}
\end{document}
38 changes: 13 additions & 25 deletions test/python/visualization/references/test_latex_big_gates.tex
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Original file line number Diff line number Diff line change
@@ -1,28 +1,16 @@
% \documentclass[preview]{standalone}
% If the image is too large to fit on this documentclass use
\documentclass[draft]{beamer}
% img_width = 6, img_depth = 4
\usepackage[size=custom,height=10,width=40,scale=0.7]{beamerposter}
% instead and customize the height and width (in cm) to fit.
% Large images may run out of memory quickly.
% To fix this use the LuaLaTeX compiler, which dynamically
% allocates memory.
\documentclass[border=2px]{standalone}

\usepackage[braket, qm]{qcircuit}
\usepackage{amsmath}
\pdfmapfile{+sansmathaccent.map}
% \usepackage[landscape]{geometry}
% Comment out the above line if using the beamer documentclass.
\begin{document}

\begin{equation*}
\Qcircuit @C=1.0em @R=1.0em @!R {
\lstick{ {q}_{0} : } & \multigate{2}{\mathrm{iqp:[[6\,5\,3];\,[5\,4\,5];\,[3\,5\,1]]}}_<<<{0} & \gate{\mathrm{Unitary}} & \qw & \qw\\
\lstick{ {q}_{1} : } & \ghost{\mathrm{iqp:[[6\,5\,3];\,[5\,4\,5];\,[3\,5\,1]]}}_<<<{1} & \multigate{1}{\mathrm{Hamiltonian}}_<<<{0} & \qw & \qw\\
\lstick{ {q}_{2} : } & \ghost{\mathrm{iqp:[[6\,5\,3];\,[5\,4\,5];\,[3\,5\,1]]}}_<<<{2} & \ghost{\mathrm{Hamiltonian}}_<<<{1} & \qw & \qw\\
\lstick{ {q}_{3} : } & \multigate{2}{|\psi\rangle\,\mathrm{(}\mathrm{0.25\jmath},\mathrm{0.3536},\mathrm{0.25+0.25\jmath},\mathrm{0},...\mathrm{)}}_<<<{0} & \multigate{1}{\mathrm{Isometry}}_<<<{0} & \qw & \qw\\
\lstick{ {q}_{4} : } & \ghost{|\psi\rangle\,\mathrm{(}\mathrm{0.25\jmath},\mathrm{0.3536},\mathrm{0.25+0.25\jmath},\mathrm{0},...\mathrm{)}}_<<<{1} & \ghost{\mathrm{Isometry}}_<<<{1} & \qw & \qw\\
\lstick{ {q}_{5} : } & \ghost{|\psi\rangle\,\mathrm{(}\mathrm{0.25\jmath},\mathrm{0.3536},\mathrm{0.25+0.25\jmath},\mathrm{0},...\mathrm{)}}_<<<{2} & \qw & \qw & \qw\\
}
\end{equation*}
\usepackage{graphicx}

\begin{document}
\scalebox{1.0}{
\Qcircuit @C=1.0em @R=1.0em @!R { \\
\nghost{ {q}_{0} : } & \lstick{ {q}_{0} : } & \multigate{2}{\mathrm{iqp:[[6\,5\,3];\,[5\,4\,5];\,[3\,5\,1]]}}_<<<{0} & \gate{\mathrm{Unitary}} & \qw & \qw\\
\nghost{ {q}_{1} : } & \lstick{ {q}_{1} : } & \ghost{\mathrm{iqp:[[6\,5\,3];\,[5\,4\,5];\,[3\,5\,1]]}}_<<<{1} & \multigate{1}{\mathrm{Hamiltonian}}_<<<{0} & \qw & \qw\\
\nghost{ {q}_{2} : } & \lstick{ {q}_{2} : } & \ghost{\mathrm{iqp:[[6\,5\,3];\,[5\,4\,5];\,[3\,5\,1]]}}_<<<{2} & \ghost{\mathrm{Hamiltonian}}_<<<{1} & \qw & \qw\\
\nghost{ {q}_{3} : } & \lstick{ {q}_{3} : } & \multigate{2}{|\psi\rangle\,\mathrm{(}\mathrm{0.25\jmath},\mathrm{0.3536},\mathrm{0.25+0.25\jmath},\mathrm{0},...\mathrm{)}}_<<<{0} & \multigate{1}{\mathrm{Isometry}}_<<<{0} & \qw & \qw\\
\nghost{ {q}_{4} : } & \lstick{ {q}_{4} : } & \ghost{|\psi\rangle\,\mathrm{(}\mathrm{0.25\jmath},\mathrm{0.3536},\mathrm{0.25+0.25\jmath},\mathrm{0},...\mathrm{)}}_<<<{1} & \ghost{\mathrm{Isometry}}_<<<{1} & \qw & \qw\\
\nghost{ {q}_{5} : } & \lstick{ {q}_{5} : } & \ghost{|\psi\rangle\,\mathrm{(}\mathrm{0.25\jmath},\mathrm{0.3536},\mathrm{0.25+0.25\jmath},\mathrm{0},...\mathrm{)}}_<<<{2} & \qw & \qw & \qw\\
\\ }}
\end{document}
36 changes: 12 additions & 24 deletions test/python/visualization/references/test_latex_cnot.tex
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Original file line number Diff line number Diff line change
@@ -1,27 +1,15 @@
% \documentclass[preview]{standalone}
% If the image is too large to fit on this documentclass use
\documentclass[draft]{beamer}
% img_width = 5, img_depth = 7
\usepackage[size=custom,height=10,width=16,scale=0.7]{beamerposter}
% instead and customize the height and width (in cm) to fit.
% Large images may run out of memory quickly.
% To fix this use the LuaLaTeX compiler, which dynamically
% allocates memory.
\documentclass[border=2px]{standalone}

\usepackage[braket, qm]{qcircuit}
\usepackage{amsmath}
\pdfmapfile{+sansmathaccent.map}
% \usepackage[landscape]{geometry}
% Comment out the above line if using the beamer documentclass.
\begin{document}

\begin{equation*}
\Qcircuit @C=1.0em @R=0.2em @!R {
\lstick{ {q}_{0} : } & \gate{\mathrm{X}} & \ctrl{1} & \ctrl{1} & \ctrlo{1} & \ctrl{1} & \qw & \qw\\
\lstick{ {q}_{1} : } & \qw & \targ & \ctrl{1} & \targ & \ctrlo{1} & \qw & \qw\\
\lstick{ {q}_{2} : } & \qw & \qw & \targ & \ctrlo{-1} & \ctrl{2} & \qw & \qw\\
\lstick{ {q}_{3} : } & \qw & \qw & \qw & \ctrl{-1} & \qw & \qw & \qw\\
\lstick{ {q}_{4} : } & \qw & \qw & \qw & \qw & \targ & \qw & \qw\\
}
\end{equation*}
\usepackage{graphicx}

\begin{document}
\scalebox{1.0}{
\Qcircuit @C=1.0em @R=0.2em @!R { \\
\nghost{ {q}_{0} : } & \lstick{ {q}_{0} : } & \gate{\mathrm{X}} & \ctrl{1} & \ctrl{1} & \ctrlo{1} & \ctrl{1} & \qw & \qw\\
\nghost{ {q}_{1} : } & \lstick{ {q}_{1} : } & \qw & \targ & \ctrl{1} & \targ & \ctrlo{1} & \qw & \qw\\
\nghost{ {q}_{2} : } & \lstick{ {q}_{2} : } & \qw & \qw & \targ & \ctrlo{-1} & \ctrl{2} & \qw & \qw\\
\nghost{ {q}_{3} : } & \lstick{ {q}_{3} : } & \qw & \qw & \qw & \ctrl{-1} & \qw & \qw & \qw\\
\nghost{ {q}_{4} : } & \lstick{ {q}_{4} : } & \qw & \qw & \qw & \qw & \targ & \qw & \qw\\
\\ }}
\end{document}
32 changes: 10 additions & 22 deletions test/python/visualization/references/test_latex_conditional.tex
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Original file line number Diff line number Diff line change
@@ -1,25 +1,13 @@
% \documentclass[preview]{standalone}
% If the image is too large to fit on this documentclass use
\documentclass[draft]{beamer}
% img_width = 3, img_depth = 6
\usepackage[size=custom,height=10,width=15,scale=0.7]{beamerposter}
% instead and customize the height and width (in cm) to fit.
% Large images may run out of memory quickly.
% To fix this use the LuaLaTeX compiler, which dynamically
% allocates memory.
\documentclass[border=2px]{standalone}

\usepackage[braket, qm]{qcircuit}
\usepackage{amsmath}
\pdfmapfile{+sansmathaccent.map}
% \usepackage[landscape]{geometry}
% Comment out the above line if using the beamer documentclass.
\begin{document}

\begin{equation*}
\Qcircuit @C=1.0em @R=0.2em @!R {
\lstick{ {q}_{0} : } & \gate{\mathrm{H}} & \meter & \qw & \gate{\mathrm{H}} & \qw & \qw\\
\lstick{ {q}_{1} : } & \gate{\mathrm{H}} & \qw & \meter & \qw & \qw & \qw\\
\lstick{c:} & \lstick{/_{_{2}}} \cw & \dstick{_{_{0}}} \cw \cwx[-2] & \dstick{_{_{1}}} \cw \cwx[-1] & \dstick{_{_{=2}}} \cw \cwx[-2] & \cw & \cw\\
}
\end{equation*}
\usepackage{graphicx}

\begin{document}
\scalebox{1.0}{
\Qcircuit @C=1.0em @R=0.2em @!R { \\
\nghost{ {q}_{0} : } & \lstick{ {q}_{0} : } & \gate{\mathrm{H}} & \meter & \qw & \gate{\mathrm{H}} & \qw & \qw\\
\nghost{ {q}_{1} : } & \lstick{ {q}_{1} : } & \gate{\mathrm{H}} & \qw & \meter & \qw & \qw & \qw\\
\nghost{c:} & \lstick{c:} & \lstick{/_{_{2}}} \cw & \dstick{_{_{0}}} \cw \cwx[-2] & \dstick{_{_{1}}} \cw \cwx[-1] & \dstick{_{_{=2}}} \cw \cwx[-2] & \cw & \cw\\
\\ }}
\end{document}
34 changes: 11 additions & 23 deletions test/python/visualization/references/test_latex_creg_initial_false.tex
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Original file line number Diff line number Diff line change
@@ -1,26 +1,14 @@
% \documentclass[preview]{standalone}
% If the image is too large to fit on this documentclass use
\documentclass[draft]{beamer}
% img_width = 4, img_depth = 4
\usepackage[size=custom,height=10,width=12,scale=0.7]{beamerposter}
% instead and customize the height and width (in cm) to fit.
% Large images may run out of memory quickly.
% To fix this use the LuaLaTeX compiler, which dynamically
% allocates memory.
\documentclass[border=2px]{standalone}

\usepackage[braket, qm]{qcircuit}
\usepackage{amsmath}
\pdfmapfile{+sansmathaccent.map}
% \usepackage[landscape]{geometry}
% Comment out the above line if using the beamer documentclass.
\begin{document}

\begin{equation*}
\Qcircuit @C=1.0em @R=0.2em @!R {
\lstick{ {q}_{0} : } & \gate{\mathrm{X}} & \gate{\mathrm{H}} & \qw & \qw\\
\lstick{ {q}_{1} : } & \gate{\mathrm{X}} & \qw & \qw & \qw\\
\lstick{c_{0}:} & \cw & \cw & \cw & \cw\\
\lstick{c_{1}:} & \cw & \cw & \cw & \cw\\
}
\end{equation*}
\usepackage{graphicx}

\begin{document}
\scalebox{1.0}{
\Qcircuit @C=1.0em @R=0.2em @!R { \\
\nghost{ {q}_{0} : } & \lstick{ {q}_{0} : } & \gate{\mathrm{X}} & \gate{\mathrm{H}} & \qw & \qw\\
\nghost{ {q}_{1} : } & \lstick{ {q}_{1} : } & \gate{\mathrm{X}} & \qw & \qw & \qw\\
\nghost{c_{0}:} & \lstick{c_{0}:} & \cw & \cw & \cw & \cw\\
\nghost{c_{1}:} & \lstick{c_{1}:} & \cw & \cw & \cw & \cw\\
\\ }}
\end{document}
32 changes: 10 additions & 22 deletions test/python/visualization/references/test_latex_creg_initial_true.tex
View file
Original file line number Diff line number Diff line change
@@ -1,25 +1,13 @@
% \documentclass[preview]{standalone}
% If the image is too large to fit on this documentclass use
\documentclass[draft]{beamer}
% img_width = 3, img_depth = 4
\usepackage[size=custom,height=10,width=12,scale=0.7]{beamerposter}
% instead and customize the height and width (in cm) to fit.
% Large images may run out of memory quickly.
% To fix this use the LuaLaTeX compiler, which dynamically
% allocates memory.
\documentclass[border=2px]{standalone}

\usepackage[braket, qm]{qcircuit}
\usepackage{amsmath}
\pdfmapfile{+sansmathaccent.map}
% \usepackage[landscape]{geometry}
% Comment out the above line if using the beamer documentclass.
\begin{document}

\begin{equation*}
\Qcircuit @C=1.0em @R=0.2em @!R {
\lstick{ {q}_{0} : \ket{{0}} } & \gate{\mathrm{X}} & \gate{\mathrm{H}} & \qw & \qw\\
\lstick{ {q}_{1} : \ket{{0}} } & \gate{\mathrm{X}} & \qw & \qw & \qw\\
\lstick{c:0} & \lstick{/_{_{2}}} \cw & \cw & \cw & \cw\\
}
\end{equation*}
\usepackage{graphicx}

\begin{document}
\scalebox{1.0}{
\Qcircuit @C=1.0em @R=0.2em @!R { \\
\nghost{ {q}_{0} : \ket{{0}} } & \lstick{ {q}_{0} : \ket{{0}} } & \gate{\mathrm{X}} & \gate{\mathrm{H}} & \qw & \qw\\
\nghost{ {q}_{1} : \ket{{0}} } & \lstick{ {q}_{1} : \ket{{0}} } & \gate{\mathrm{X}} & \qw & \qw & \qw\\
\nghost{c:0} & \lstick{c:0} & \lstick{/_{_{2}}} \cw & \cw & \cw & \cw\\
\\ }}
\end{document}
36 changes: 12 additions & 24 deletions test/python/visualization/references/test_latex_cswap_rzz.tex
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Original file line number Diff line number Diff line change
@@ -1,27 +1,15 @@
% \documentclass[preview]{standalone}
% If the image is too large to fit on this documentclass use
\documentclass[draft]{beamer}
% img_width = 5, img_depth = 8
\usepackage[size=custom,height=10,width=16,scale=0.7]{beamerposter}
% instead and customize the height and width (in cm) to fit.
% Large images may run out of memory quickly.
% To fix this use the LuaLaTeX compiler, which dynamically
% allocates memory.
\documentclass[border=2px]{standalone}

\usepackage[braket, qm]{qcircuit}
\usepackage{amsmath}
\pdfmapfile{+sansmathaccent.map}
% \usepackage[landscape]{geometry}
% Comment out the above line if using the beamer documentclass.
\begin{document}

\begin{equation*}
\Qcircuit @C=1.0em @R=0.2em @!R {
\lstick{ {q}_{0} : } & \gate{\mathrm{X}} & \ctrl{1} & \control \qw & \qw & \qw & \qw & \qw & \qw\\
\lstick{ {q}_{1} : } & \gate{\mathrm{X}} & \qswap & \ctrl{-1} & \qw & \qw & \qw & \qw & \qw\\
\lstick{ {q}_{2} : } & \qw & \qswap \qwx[-1] & \ctrlo{-1} & \qw & \qw & \qw & \qw & \qw\\
\lstick{ {q}_{3} : } & \qw & \qw & \ctrl{-3} & \dstick{\hspace{2.0em}\mathrm{ZZ}\,\mathrm{(}\mathrm{\frac{3\pi}{4}}\mathrm{)}} \qw & \qw & \qw & \qw & \qw\\
\lstick{ {q}_{4} : } & \qw & \qw & \ctrlo{-1} & \qw & \qw & \qw & \qw & \qw\\
}
\end{equation*}
\usepackage{graphicx}

\begin{document}
\scalebox{1.0}{
\Qcircuit @C=1.0em @R=0.2em @!R { \\
\nghost{ {q}_{0} : } & \lstick{ {q}_{0} : } & \gate{\mathrm{X}} & \ctrl{1} & \control \qw & \qw & \qw & \qw & \qw & \qw\\
\nghost{ {q}_{1} : } & \lstick{ {q}_{1} : } & \gate{\mathrm{X}} & \qswap & \ctrl{-1} & \qw & \qw & \qw & \qw & \qw\\
\nghost{ {q}_{2} : } & \lstick{ {q}_{2} : } & \qw & \qswap \qwx[-1] & \ctrlo{-1} & \qw & \qw & \qw & \qw & \qw\\
\nghost{ {q}_{3} : } & \lstick{ {q}_{3} : } & \qw & \qw & \ctrl{-3} & \dstick{\hspace{2.0em}\mathrm{ZZ}\,\mathrm{(}\mathrm{\frac{3\pi}{4}}\mathrm{)}} \qw & \qw & \qw & \qw & \qw\\
\nghost{ {q}_{4} : } & \lstick{ {q}_{4} : } & \qw & \qw & \ctrlo{-1} & \qw & \qw & \qw & \qw & \qw\\
\\ }}
\end{document}
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