-let get_hadjustment mathview () =
- let adj = mathview#get_hadjustment in
- adj#set_value ((adj#lower +. adj#upper) /. 2.0) ;
+let get_adjustments mathview () =
+ let hadj, vadj = mathview#get_adjustments in
+ hadj#set_value ((hadj#lower +. hadj#upper) /. 2.0) ;
+ vadj#set_value ((vadj#lower +. vadj#upper) /. 2.0) ;