| 摘要 |
PURPOSE:To efficiently use this formula manipulating arithmetic unit by judging an inputted character sort, and in the case of a formula consisting of alphanumeric characters and operators, supplying these mathematical characters to an arithmetic processing part and displaying an obtained operation result as a conversion candidate. CONSTITUTION:A ROM 11 stores system control and a program and a RAM 12 stores the working area of the program. A font control part 14 controls characters to be displayed on a screen. Mathematical operation conversion is started by depressing a 'SHIFT + CONVERT' key in order to distinguish it from a general conversion function. Since the system executes processing in a mixed state of a general character string and a formula, the formula should be clearly distinguished from the general character string. When '3+5.10' is inputted as an example of mathematical operation conversion, ''f.3' ' is displayed when the 'SHIFT + CONVERT' key is depressed. At the time of inputting that the answer exceeds '2.35+1', a message that the answer exceeds '71' is displayed by depressing 'SHIFT + CONVERT' key. |
