DOA is also frequently used as slang to indicate a new item that was received broken, or that an idea or concept is a nonstarter. In this case, the acronym may stand for Defective on Arrival instead.
And then click on the square root symbol.... 0. 1. Try this site you can check symbols and codes here www.alt-codes.net/how_to_use_alt_codes/. square root symbol. Then click on select and copy. The symbol will now be copied to your clipboard and you can paste it like this: â.you can try ALT +251.hope it works.nd then click on the square root symbol.... 0. 1. Try this site you can check symbols and codes here www.alt-codes.net/how_to_use_alt_codes/. square root symbol. Then click on select and copy. The symbol will now be copied to your clipboard and you can paste it like this: â.
To indicate some root other than a square root, you use the same radical symbol, but you insert a number into the radical, tucking it into the check mark part. For instance: The  3  in the above is the index of the radical; the  64  is the argument of the radical, also called the radicand.Since most radicals you see are square roots, the index is not included on square roots. While   would be technically correct, I've never seen it used.o indicate some root other than a square root, you use the same radical symbol, but you insert a number into the radical, tucking it into the check mark part. For instance: The  3  in the above is the index of the radical; the  64  is the argument of the radical, also called the radicand.