Concatenate two transformations; the second transformation is altered by prefixing the first one to it. The first transformation is not altered.

CALL TRN_PRFX( LOCTR1, LOCTR2, STATUS )

LOCTR1 = C${}_{LOC}$

LOCTR2 = C${}_{LOC}$

STATUS = I

Before two transformations may be concatenated, the following conditions must apply:

• The number of output variables from the first transformation must match the number of input variables to the second transformation.

• The transformations must have at least one mapping (forward or inverse) in common.