| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce a stress which is felt due to a formula display with a natural display format. <P>SOLUTION: A scientific electronic calculator 1 includes a CPU 11 which extracts and erases stored key data in the order of an old input, and displays a formula shown by the extracted key data with a natural display format. When the oldest key data among the stored key data are a natural display arithmetic symbol key to be detected as individual display processing key data, the CPU 11 extracts only the individual display processing key data, and performs display based on the individual display processing key data, and when the oldest key data among the stored key data are a one line display arithmetic symbol key or a numerical key to be detected as end batch display processing key data, the CPU 11 extracts a plurality of continuous end batch display processing key data including the end batch display processing key data, and performs display based on the plurality of end batch display processing key data in a lump. <P>COPYRIGHT: (C)2012,JPO&INPIT |
