15.37.25  SCALE       

Fits  the LOG(X or Y) to the base e if a log scale is selected for X or Y.
see the  command:   SET SCALE.   Similarly  the  option  EXPONENTIAL  fits
LOG(Y)=series.

                                  example
     TD:SET SCALE Y LOG
     TD:FIT TERMS=4
Fits a polynomial LOG(Y)=a0+a1*X+a2*X**2+a3*X**3
                                  example
     TD:SET SCALE X LOG
     TD:FIT TERMS=3
Fits a polynomial Y=a0+a1*LOG(X)+a2*LOG(X)**2