fix indentation in XXPlusYYGate docstring (Qiskit#12365)

* fix indentation in XXPlusYYGate docstring * break long lines
ElePT · May 31, 2024 · 9fd495e · 9fd495e
1 parent 9ee5aef
commit 9fd495e
Showing 1 changed file with 14 additions and 12 deletions.
diff --git a/qiskit/circuit/library/standard_gates/xx_plus_yy.py b/qiskit/circuit/library/standard_gates/xx_plus_yy.py
@@ -71,18 +71,20 @@ class XXPlusYYGate(Gate):
             q_1: ┤0              ├
                  └───────────────┘
 
-    .. math::
-
-        \newcommand{\rotationangle}{\frac{\theta}{2}}
-
-        R_{XX+YY}(\theta, \beta)\ q_0, q_1 =
-          RZ_1(-\beta) \cdot \exp\left(-i \frac{\theta}{2} \frac{XX+YY}{2}\right) \cdot RZ_1(\beta) =
-            \begin{pmatrix}
-                1 & 0 & 0 & 0  \\
-                0 & \cos\left(\rotationangle\right) & -i\sin\left(\rotationangle\right)e^{i\beta} & 0 \\
-                0 & -i\sin\left(\rotationangle\right)e^{-i\beta} & \cos\left(\rotationangle\right) & 0 \\
-                0 & 0 & 0 & 1
-            \end{pmatrix}
+        .. math::
+
+            \newcommand{\rotationangle}{\frac{\theta}{2}}
+
+            R_{XX+YY}(\theta, \beta)\ q_0, q_1 =
+            RZ_1(-\beta) \cdot \exp\left(-i \frac{\theta}{2} \frac{XX+YY}{2}\right) \cdot RZ_1(\beta) =
+                \begin{pmatrix}
+                    1 & 0 & 0 & 0  \\
+                    0 & \cos\left(\rotationangle\right) &
+                    -i\sin\left(\rotationangle\right)e^{i\beta} & 0 \\
+                    0 & -i\sin\left(\rotationangle\right)e^{-i\beta} &
+                    \cos\left(\rotationangle\right) & 0 \\
+                    0 & 0 & 0 & 1
+                \end{pmatrix}
     """
 
     def __init__(