##sqrt0.0081=0.09##
##sqrt0.0081= sqrt(81/10000)## =##sqrt(9^2/100^2)## =##9/100## =##0.09##
##sqrt0.0081=0.09##
##sqrt0.0081= sqrt(81/10000)## =##sqrt(9^2/100^2)## =##9/100## =##0.09##
##sqrt0.0081=0.09##
##sqrt0.0081= sqrt(81/10000)## =##sqrt(9^2/100^2)## =##9/100## =##0.09##