6. The invention according to claim 5, wherein said information stored in said memory means comprises a plurality of first words in a first language, a like plurality of groups of translated words in a second language, each group corresponding to a separate one of the plurality of first words, at least a portion of the groups including at least two translated words in the second language, and wherein said characteristic codes indicate a part of speech for each translated word in each of said groups in said second language.
7. The invention according to claim 6, wherein said display means separately and simultaneously displays said entered numerical information and the results of calculations performed by said calculation means.