| 摘要 |
PURPOSE:To detect the operation of a specific key to generate and display a regression graph by performing the statistical calculation processing of input numerical values on a basis of preliminarily set X-axis and Y-axis ranges to obtain display plot data. CONSTITUTION:Input data from a key input part 1 is sent to a control part 20. The control part 20 stores various control programs and gives control commands and calculation data to a numerical formula storage part 19, an operating part 21, a numerical formula buffer 22, and a display buffer 23 and gives address data and read/write commands to a storage part 24 consisting of a RAM or the like. the display buffer 23 is address by data sent from the storage part 24 through an address decoder 25 to output and display data, which is written in a text display buffer 23a and a graph display buffer 23b, on a display part 26. The leftmost end and the rightmost end in the X-axis direction are set as a minimum value Xmin and a maximum value Xmax respectively, and those in the Y-axis direction are set as a minimum value Ymin and a maximum value Ymax, and coordinate positions are displayed. |
