Hi Andre, I have not run into the number-of-dimension limit of the compiler. But I've never tried 8 (or more) dimensions! I don't think the ISO 9899:1999 (C99) or ISO 9899:1989 (C89) have limits on the number of dimensions. I presume the only constraint is available memory for your architecture. Calculate out how many bytes of storage your technique will utilize: sizeof(double) * n1 * n2 * n3 * n4 * n5 * n6 * n7 * n8; Is that within the constraint of your platform? For instance, PC-DOS that limit would be 65536 bytes. Also note: putting arrays (or any sort of data) in header files is strongly discouraged. If two different source files include that same header file, each translation unit will get its own copy of that data. Header files are for declarations of things (no storage reserved), not definitions of things (bytes of code or data allocated). Also, as mentioned already, putting large arrays on the stack is discouraged, because the stack is usually significantly smaller than the heap (or in C++ lingo, the global store). Sincerely, --Eljay
