realign some equations

a lot easier to read now

bfps/cpp/particles/particles_inner_computer.hpp

@@ -55,12 +55,12 @@ public:
         #pragma omp parallel for
         for(partsize_t idx_part = 0 ; idx_part < nb_particles ; ++idx_part){
             // Cross product vorticity/orientation
-            rhs_part[idx_part*size_particle_rhs + 3+IDX_X] += rhs_part_extra[idx_part*size_particle_rhs_extra + IDX_Y]*pos_part[idx_part*size_particle_positions + 3+IDX_Z]
-                                                             - rhs_part_extra[idx_part*size_particle_rhs_extra + IDX_Z]*pos_part[idx_part*size_particle_positions + 3+IDX_Y];
-            rhs_part[idx_part*size_particle_rhs + 3+IDX_Y] += rhs_part_extra[idx_part*size_particle_rhs_extra + IDX_Z]*pos_part[idx_part*size_particle_positions + 3+IDX_X]
-                                                             - rhs_part_extra[idx_part*size_particle_rhs_extra + IDX_X]*pos_part[idx_part*size_particle_positions + 3+IDX_Z];
-            rhs_part[idx_part*size_particle_rhs + 3+IDX_Z] += rhs_part_extra[idx_part*size_particle_rhs_extra + IDX_X]*pos_part[idx_part*size_particle_positions + 3+IDX_Y]
-                                                             - rhs_part_extra[idx_part*size_particle_rhs_extra + IDX_Y]*pos_part[idx_part*size_particle_positions + 3+IDX_X];
+            rhs_part[idx_part*size_particle_rhs + 3+IDX_X] += (rhs_part_extra[idx_part*size_particle_rhs_extra + IDX_Y]*pos_part[idx_part*size_particle_positions + 3+IDX_Z] -
+                                                               rhs_part_extra[idx_part*size_particle_rhs_extra + IDX_Z]*pos_part[idx_part*size_particle_positions + 3+IDX_Y]);
+            rhs_part[idx_part*size_particle_rhs + 3+IDX_Y] += (rhs_part_extra[idx_part*size_particle_rhs_extra + IDX_Z]*pos_part[idx_part*size_particle_positions + 3+IDX_X] -
+                                                               rhs_part_extra[idx_part*size_particle_rhs_extra + IDX_X]*pos_part[idx_part*size_particle_positions + 3+IDX_Z]);
+            rhs_part[idx_part*size_particle_rhs + 3+IDX_Z] += (rhs_part_extra[idx_part*size_particle_rhs_extra + IDX_X]*pos_part[idx_part*size_particle_positions + 3+IDX_Y] -
+                                                               rhs_part_extra[idx_part*size_particle_rhs_extra + IDX_Y]*pos_part[idx_part*size_particle_positions + 3+IDX_X]);
         }
     }
 
@@ -75,3 +75,4 @@ public:
 };
 
 #endif
+