sqrt1.AXMathRootRadicand.count=4
sqrt1.AXMathRootRadicand[0].AXChildren[0].AXValue='1'
sqrt1.AXMathRootRadicand[1].AXChildren[0].AXValue='2'
sqrt1.AXMathRootRadicand[2].AXChildren[0].AXValue='3'
sqrt1.AXMathRootRadicand[3].AXChildren[0].AXValue='4'
sqrt2.AXMathRootRadicand.count=0
root1.AXMathRootRadicand.count=1
root1.AXMathRootRadicand[0].AXChildren[0].AXValue='1'
root2.AXMathRootRadicand=NULL