calc.eval.fmfn

/*
 * =====================================================
 * calc.eval( calc )
 * RETURNS:        (bool) True or False based on proper evaluation
 * DEPENDENCIES:   none 
 * NOTES:          see var.eval for declaring multiple variables
 * =====================================================
 * 
 * This custom function is a wrapper for the
 * assignment(creation) of global variables.
 */

Let (
 $$ERROR.CALC.EVAL = ""; // Reset the global error variable for evaluation
    If (
        Evaluate( 
            calc        
        ) = "?";
        Let ( $$ERROR.CALC.EVAL = "EVAL ERROR¶-----¶" & calc; False );
        True
    )
)