| 摘要 |
PURPOSE: A formula input method using a computing media for improving the convenience of a user is provided to easily perform making, editing, modifying and deleting operation by supplying expression elements as individual character. CONSTITUTION: An expression keyword is instituted(S100). An input field is activated(S200). A first primary key is inputted. A character corresponding to the first primary key is outputted in the input field(S300). In case the first primary key is included in the numerical expression key word, the formula corresponding to the numerical expression key word is outputted through the display device in the selectable menu type(S400,S500). The second key is inputted(S600). In case the second key is the selection key of formula, the selected formula is outputted in the input field.
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