Not easy at all to do simple stuff like drawing parallels and perpendiculars. Rubbish.
Excellent and very very useful,
Great app simple to use and not a complete waste of time... 8/8 would not use again..
Graphing Calculator for plotting functions, solving equations and more!
Interactive Geometry with Lines, Circles, Polygons, Angles and more!
Solve puzzles on arithmetic, inequalities, logarithms, primes and more!