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Our primary audience is teachers and learners anywhere who are interested in using technology in higher education . AT & T has developed a set of resources to assist the teacher wishing to learn more about using technology in the classroom . The second example shows a keyboard macro definition that calls read-char from the minibuffer using eval-expression . " " Cryptographers use source code to express their scientific ideas in much the same way that mathematicians use equations or economists use graphs , " Fletcher wrote . In a first step , RM is identified through a specific procedure using optimization techniques and a Detailed Model ( DM ) . The " paleoconservatives " who rally around Pat Buchanan have long contended that the neocons are really secular liberals who use religion and the cultural issues for their own dubious purposes .