| 摘要 |
PURPOSE:To draw and display complicated graphs without input of much information as parameters, by converting data of a designated range into a code train displaying the length used for the graphs by a converting means. CONSTITUTION:A CRT controller CRTC displays a cursor on a display screen of a display CRT based on the cursor data stored in a cursor register CR, a character code data stored in a buffer BUF is converted into pattern data by referring to a character generator CG to display characters or symbol patterns on the CRT. First, a cursor CM is shifted to a position B1, a range head key is depressed and the CM is shifted to a position B2, a range end key is depressed and the range of objective numerical train to be graphed is designated. Then, the CM is shifted to a position B3 to display a corresponding graph. |
