“…, the arithmetic operations are defined in the following (Alsawy and Hefny 2013a;Mohamad and Rofai 2015). The validity of the operations is checked here for interval number [a, b], b > a.…”
“…, the arithmetic operations are defined in the following (Alsawy and Hefny 2013a;Mohamad and Rofai 2015). The validity of the operations is checked here for interval number [a, b], b > a.…”
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