Matichere a hloka ho tataisa le ho khothaletsa baithuti ho kenyelletsa tsebo e fumanoeng ho tsoa ho thuto e arolelanoang ea setso, ho theha marang-rang a tsebo ea mesebetsi ea trigonometric le ho theha mokhoa o akaretsang oa kutloisiso.
在hloka ho Tata isa le khotetsa baithuti ho kenyelsa tsebo和fumanoeng ho tsoa ho thuto和arolelanoang及setso、ho theha marang-rang a tsebo和mesebetsi以及三角函数le ho theha mokhoa或akaretsang oa kutloisiso之间绘制铅笔。