Syntax error in my code

[trishita]

Can anybody point out what is wrong in my code?

if(Sounding Correction Status='Correction Done',

     if(abs[Deviation after sounding]=abs[Difference Vs Log Survey],

        green(), //When value of the both fields match they display green

        if([Deviation after sounding] - [Difference Vs Log Survey]<>0,

             yellow(), //When value of the both fields differ they display yellow

             blue()

          ),

        red()  ////When Sounding Correction Status='Correction Not Done' they display red

[olivierrobin]

hello

it is not abs put fabs()