Add files via upload

Author: ss0832

multioptpy/Optimizer/rsirfo.py

@@ -187,6 +187,7 @@ def run(self, geom_num_list, B_g, pre_B_g=[], pre_geom=[], B_e=0.0, pre_B_e=0.0,
 
         # Create the image Hessian H_star and image gradient grad_star
         H_star = np.dot(P, H)
+        H_star = 0.5 * (H_star + H_star.T)  # Symmetrize the Hessian
         grad_star = np.dot(P, gradient)
 
         # Compute eigenvalues and eigenvectors of the image Hessian