escape Sphinx backslash

Author: petercorke

spatialmath/pose3d.py

@@ -971,7 +971,7 @@ def delta(self, X2):
         return base.tr2delta(self.A, X2.A)
 
     def Ad(self):
-        """
+        r"""
         Adjoint of SE(3)
 
         :return: adjoint matrix
@@ -997,7 +997,7 @@ def Ad(self):
         return base.tr2adjoint(self.A)
 
     def jacob(self):
-        """
+        r"""
         Velocity transform for SE(3)
 
         :return: Jacobian matrix

spatialmath/quaternion.py

@@ -1286,7 +1286,7 @@ def Eul(cls, *angles, unit='rad'):
 
     @classmethod
     def RPY(cls, *angles, order='zyx', unit='rad'):
-        """
+        r"""
         Construct a new unit quaternion from roll-pitch-yaw angles
 
         :param 𝚪: 3-vector of roll-pitch-yaw angles

spatialmath/twist.py

@@ -138,7 +138,7 @@ def isrevolute(self):
 
     @property
     def isunit(self):
-        """
+        r"""
         Test for unit twist (superclass property)
 
         :return: Whether twist is a unit-twist