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DEFDBL                   Define Variable(s) as Double Precision

 DEFDBL letter[-letter] [,letter [-letter]]...

    Declares one or more variables to be double precision.

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      Notes:    All variable names beginning with any of the specified
                letters (case-insensitive) will be double precision,
                unless a type-identifier character (%, !, or $) is used to
                override the DEFDBL declaration.

                The DEFDBL declaration must be read by the compiler before
                any statements in which the declared variables are
                assigned or used. The compiler reads from beginning to
                end, without regard for execution path.

                You cannot avoid a DEFDBL declaration by direction the
                execution path around it.

                DEFDBL statements do not affect symbolic constants.