任一角三等分多用尺的使用是基于本发明者尺（无刻度）规作图原理的发现：Ａ为圆心，ＡＢ为半径划弧交另一边 Ｃ，中线ＡＤ与 ＢＣ相交于Ａ’，以Ａ‘为圆心，寻找作 Ｏ和 Ｏ’点，始终Ａ’Ｏ＝Ａ‘Ｏ’（不相等时可以收缩或放开点圆规，从而使ＯＯ‘＝ＯＢ，连结 ＡＯ和 ＡＯ The use of any one-quarter trisectional ruler is based on the finding of the invention's rule of ruler (no scale) mapping: A is the center of the circle, AB is the arc of a radius to the other side C, and the midline AD intersects BC at A ' A 'as the center of the circle, looking for O and O' points, always A'O = A'O '(if not equal, you can shrink or open the point compass, so that OO' = OB, AO and AO