LabVIEW
Where can I find these blocks?
Are you looking at pictures or are you looking at a diagram? On a diagram, just hover over the function with the context help open (ctrl+h).
If you are just looking at a picture, it seems rather pointless, but the one on the right is "index array" and the one on the left is an obsolete version of peak detector and you should be replacing it with the updated version.
Not going to give you the fish (Bob's spot on).
A hint on how to catch fish: turn on the label of those objects (right click>visible items). Or turn on the LV help (ctrl+h) and hover over them.
EDIT: Of course if you got an image (as homework), this won't work...
Search LabVIEW like a graph! 
@wppome wrote:
I want to know where I can find these blocks.
.
These functions are of course in the function palette of the LabVIEW development system. It is significantly more important to know what they do than where to find them, but for that you need background and context unless you are e.g. playing some treasure-hunt game where "finding" is the only object.
Are you trying to understand a program or duplicate a program from a picture? What does the program do? Who wrote it? What are you trying to do with it? If you are familiar with LabVIEW and dataflow, just look at the big picture. Where is the input data coming from? where do the outputs go? What purpose could these function serve in the overall flow of things?
If you are not familiar with LabVIEW, and want to learn, follow the advice by others. You cannot understand how a car works by knowing where to "find" a lug nut. 😄
@wppome wrote:
I want to know where I can find these blocks.
Quick drop... Once you know the names...
