+ let transpose : 'a array array -> 'a array array =
+ fun matrix ->
+ let get_element = fun i -> fun array -> array.(i) in
+ let get_column = fun m -> fun i -> Array.map (get_element i) m in
+ Array.init self#width (get_column matrix) in
+ let value_init = new value Error in
+ let container = Array.make length_max
+ (Array.make self#width value_init) in
+ let index = ref 0 in
+
+ try
+ while !index < length_max do
+ container.(!index) <- self#at !index;
+ incr index;
+ done;
+ transpose container
+ with x ->
+
+ let error_message =
+ match x with
+ | Convert_Error s -> "Convert_Error: " ^ s
+ | Basic_operation s -> "Basic_operation: " ^ s
+ | Signal_operation s -> "Signal_operation: " ^ s
+ | Beam_matching s -> "Beam_Matching_Error: " ^ s
+ | _ -> "Compute finished."
+ in
+ let () = print_string error_message in
+ transpose (Array.sub container 0 !index)