<![CDATA[Only positive square root.]]>
https://help.geogebra.org/topic/only-positive-square-root
Tue, 07 May 2019 06:26:58 +0000Mon, 06 May 2019 22:23:32 +0000Zend_Feed<![CDATA[it's by convention that 'sqrt' gives only the positive root. If you write it in symbols or draw the graph of y=sqrt(x) it is too, so not only in this GG software. chris]]>
https://help.geogebra.org/topic/only-positive-square-root#comment-260558
Tue, 07 May 2019 05:37:54 +0000<![CDATA[As Chris says sqrt(x) is a function so y=x^2 has these two separate solutions x=+sqrt(y)
x=-sqrt(y) If that wasn't the case you wouldn't write the “±” symbol in https://en.wikipedia.org/wi...]]>
https://help.geogebra.org/topic/only-positive-square-root#comment-260560
Tue, 07 May 2019 06:26:58 +0000