how to concatenate n matrixs together to form a bigger matrix

Hi..I have 1000 matrices ,A_1 to A_1000 of size 3*3 .I want to merge all then together (concatenate )vertically to form a bigger rectangular matrix of size 3000*3.. I know [A_1 A_2 . . . . A_1000] will do this .pls let me know instead of manual typing from A_1 to A_1000 it can be looped in some way or ..

Answer 1

[Image Analyst]

How did you ever get in the unfortunate position of having 1000 variables all with different names ? Did you not heed the FAQ's advice against doing that: http://matlab.wikia.com/wiki/FAQ#How_can_I_create_variables_A1.2C_A2.2C....2CA10_in_a_loop.3F If so, you'll have to use the hated eval() function.