Merge pull request #95 from e3nn/so3

Add division and negation for SO3Signal.

e3nn_jax/_src/so3grid.py

@@ -125,7 +125,21 @@ def __mul__(self, other: Union[float, "SO3Signal"]) -> "SO3Signal":
 
         return SO3Signal(self.s2_signals * other)
 
-    def __truediv__(self, other: float) -> "SO3Signal":
+    def __rmul__(self, other: float) -> "SO3Signal":
+        return self * other
+
+    def __neg__(self) -> "SO3Signal":
+        return self * -1
+
+    def __truediv__(self, other: Union[float, "SO3Signal"]) -> "SO3Signal":
+        if isinstance(other, SO3Signal):
+            if self.shape != other.shape:
+                raise ValueError(
+                    f"Shapes of the two signals do not match: {self.shape} != {other.shape}"
+                )
+
+            return self.replace_values(self.grid_values / other.grid_values)
+
         return self * (1 / other)
 
     def apply(self, func: Callable[..., jnp.ndarray]) -> "SO3Signal":