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[LitusSaxonicum]

Sid,

To complement Paul's answer, you can also use the OPTIONS compiler directive to set the default REAL to be DOUBLE PRECISION or REAL*8, and something similar to make all INTEGERs 4 byte:

OPTIONS (INTL, DREAL)

Although REAL*4 is good enough precision in many cases, there are also many cases where it isn't. The option DREAL makes it appear as though the computer only has REAL*8 - unless you declare something specifically to a lower precision.

Eddie