https://communities.sas.com/t5/SAS-Programming/sqrt-function/m-p/539238#M148545 <P>Hi,</P> <P>&nbsp;</P> <P>I am facing some cases where while performing some calculation, when I take square root of a value with sqrt function and then re-square the result with **2, the result is not same as that of the original value. The differences are very&nbsp;small like x.xxxxxxE-17.</P> <P>&nbsp;</P> <P>Not sure&nbsp;why this is happening.</P> <P>&nbsp;</P> <P>Is there any alternative way to **2, so that result will remain same.</P> <P>&nbsp;</P> <P>&nbsp;</P> Thu, 28 Feb 2019 08:51:11 GMT Snehal 2019-02-28T08:51:11Z https://communities.sas.com/t5/SAS-Programming/sqrt-function/m-p/539238#M148545 <P>Hi,</P> <P>&nbsp;</P> <P>I am facing some cases where while performing some calculation, when I take square root of a value with sqrt function and then re-square the result with **2, the result is not same as that of the original value. The differences are very&nbsp;small like x.xxxxxxE-17.</P> <P>&nbsp;</P> <P>Not sure&nbsp;why this is happening.</P> <P>&nbsp;</P> <P>Is there any alternative way to **2, so that result will remain same.</P> <P>&nbsp;</P> <P>&nbsp;</P> Thu, 28 Feb 2019 08:51:11 GMT https://communities.sas.com/t5/SAS-Programming/sqrt-function/m-p/539238#M148545 Snehal 2019-02-28T08:51:11Z https://communities.sas.com/t5/SAS-Programming/sqrt-function/m-p/539240#M148546 <P>The <A href="https://documentation.sas.com/?docsetId=lrcon&amp;docsetTarget=p0ji1unv6thm0dn1gp4t01a1u0g6.htm&amp;docsetVersion=9.4&amp;locale=en" target="_self">online help</A> explains the differences you see.</P> Thu, 28 Feb 2019 09:06:27 GMT https://communities.sas.com/t5/SAS-Programming/sqrt-function/m-p/539240#M148546 andreas_lds 2019-02-28T09:06:27Z