Grid the data with PROC G3GRID. The OUT= option on Proc G3GRID specifies a name for the temporary output data set. The GRID option specifies the variables Y*X=Z for the output data set. The AXIS statements define axes ranges.

proc g3grid data=nums out=default;
   grid y*x=z / 
      axis1=-5 to 5 by .5
      axis2=-5 to 5 by .5;
   run;
quit;