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→+/- notation deleted?: Not to be pedantic, but ...
: I am still confused by "Since in many situations only the positive square root has any meaning". Don't you mean "Since in many situations both square roots are needed"? The square root symbol is for the nonnegative root, but often both roots are needed. [[User:RSchlafly|RSchlafly]] 02:50, 24 April 2007 (EDT)
: I am still confused by "Since in many situations only the positive square root has any meaning". Don't you mean "Since in many situations both square roots are needed"? The square root symbol is for the nonnegative root, but often both roots are needed. [[User:RSchlafly|RSchlafly]] 02:50, 24 April 2007 (EDT)
Wolfram says:
:The unique nonnegative square root of a nonnegative real number. For example, the principal square root of 9 is 3, although both -3 and 3 are square roots of 9. [http://mathworld.wolfram.com/PrincipalSquareRoot.html]
I want to make sure our article won't mislead some teen studying for the SAT. --[[User:Ed Poor|Ed Poor]] 13:03, 24 April 2007 (EDT)