Assertion: root's number | /r/HasAspect | unique nonnegative square root
Facets:
Source sentences:
text: Every nonnegative real number x has a unique nonnegative square root, called the principal square root, which is denoted by √x, where the symbol √ is called the radical sign or radix.
text: A real number which is non-negative has a unique nonnegative square root.
text: A real number which is non negative has a unique nonnegative square root.