How to create array of arrays

[heliosdrm]

Recent related thread:

Array assignment is alias and assignment semantics

Why? I started this post because I found that array assignment created an alias, leading to an unexpected problem. I wasn’t sure if this was a bug. But it’s now clear that it is the expected behavior. So my goals are to help others who may encounter this; to understand how assignment semantics work in general, and how to find out information on same; to take some probably ineffective shots at the documenation . Behavior Apparently if aa is an Array and I set bb = aa then chang…