After PC input,  press [ENT] or F5[ACCEPT] to viwe the EP screen. 
Input the PN, X, Y, Z Coordinates and PC name of the End point.
Press [ENT] to view the RESULT OF INVERSE
screen.
C.  Another End point Coordinates input
Input the PN, X, Y, Z Coordinates and PC name
of another End point, and another inverse result
can be performed. 
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