hello all, Sorry for this probable OT post, but I believe the boost guys must be able to help me. :-) I'm looking for a class similar to this: template class data_grid { //... }; It's a data block of arbitrary dimensions. With it user can do thing's like data look up, and interpolate on any series of specified dimentions, and the like. I guess boost doesn't have an out-of-the-box class like this, while multi_array is close to this requirements. Yes, I could write one by myself. But if there's an existing one, I won't bother to reinvent a wheel. Thanks for any information. with best regards Max ------------------------------------------------------------------- 新浪空间——与朋友开心分享网络新生活！(http://space.sina.com.cn/ )