Yes - in fact, this is the way you should do it!

Think about it: if you have a table of constants in RAM, how are those constant values going to get into the RAM when you switch your system on? Of course, the compiler has to supply code to load the values into your RAM table, so it will have to store the values in the Code space (eg, Flash) anyway!

By defining the table in Code space in the first place, you save having to do the copying!

In assembler, you'd be using MOVC.