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Short helpfile for action COMBINE
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The following arguments are compulsory: 

               PERIODIC - if the output of your function is periodic then you should 
                          specify the periodicity of the function. If the output is not 
                          periodic you must state this using PERIODIC=NO 
           COEFFICIENTS - ( default=1.0 ) the coefficients of the arguments in your 
                          function 
             PARAMETERS - ( default=0.0 ) the parameters of the arguments in your 
                          function 
                 POWERS - ( default=1.0 ) the powers to which you are raising each of 
                          the arguments in your function 

In addition you may use the following options: 

              NORMALIZE - ( default=off ) normalize all the coefficients so that in 
                          total they are equal to one 
                    ARG - the input to this function. You can use multiple instances 
                          of this keyword i.e. ARG1, ARG2, ARG3... 


