DOC changed <= symbol to \leq in tree module documentation (#23425)

IvanSedykh · Ivan Sedykh · web-flow · commit 632384f4314d · 2022-05-19T16:03:17.000-04:00
Co-authored-by: Ivan Sedykh &lt;`sed.ivan.dm@gmail.com&gt;
diff --git a/doc/modules/tree.rst b/doc/modules/tree.rst
@@ -452,7 +452,7 @@ feature :math:`j` and threshold :math:`t_m`, partition the data into
 
 .. math::
 
-    Q_m^{left}(\theta) = \{(x, y) | x_j <= t_m\}
+    Q_m^{left}(\theta) = \{(x, y) | x_j \leq t_m\}
 
     Q_m^{right}(\theta) = Q_m \setminus Q_m^{left}(\theta)
 
