To easily and quickly designate and correct a position of a character or a symbol to be corrected in an inputted mathematical equation in regard to a mathematical equation calculator carrying out calculation processing and displaying a result in response to an inputted and displayed mathematical equation.
In a state of setting an edit mode with respect to a displayed mathematical equation "123+4563+5" by operating input of a cursor key "upward arrow", if a numeric key "4" is designated, a cursor K is immediately displayed as an editing object in a position of a number "4" in the mathematical equation the same as the inputted numeric key "4", and by inputting a desired numeric key "7" on the spot, the number "4" wherein the cursor K is positioned can be easily corrected to "7".
| JP3615395 | Electronics |
| JPH05298307A | 1993-11-12 |
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Sadao Muramatsu
Ryo Hashimoto
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