Sign up for an Award
Participate with your entry in one of our professional or student awards.Sign up for an award
You are using an outdated browser. Please upgrade your browser to improve your experience.
M-Compasses increase the efficiency and raise the accurency in mathmatic drawing and measuring. Usually, before using the compasses, users must put the needle and nib onto the ruler and carefully match the scale, and then carefully keeping the angle until drawing down a circle.
M-Compasses transfers the angle to distance(calculated from trigonometric function). Thanks to the structure, the M-Compasses can also be good at measuring, don’t need to perfectly match the line to the ruler, just putting the head to the end of the line.
East China Normal University
Yi Wei, Xu
Rujun, Sun Huizhu, Zhang