Xiaojun Liu – Resources – GeoGebra

Differential Geometry
Book
Xiaojun Liu
The curvature and Frenet trihedron for spiral curve
Activity
Xiaojun Liu
The tangent and curvature of circle
Activity
Xiaojun Liu
Visual Complex Analysis
Book
Xiaojun Liu
Prove a quadrilateral relation by using complex analysis.
Activity
Xiaojun Liu
Demonstrate the power series way of proving Euler formula
Activity
Xiaojun Liu
Demonstrates the Euler's formula by using motion of particle
Activity
Xiaojun Liu
quadratic equation [math] x^2=mx+n [/math]
Activity
Xiaojun Liu
Solving the cubic equation [math]x^3 = 3px +2q[/math]
Activity
Xiaojun Liu
The rules for multiplication of two complex numbers, A B
Activity
Xiaojun Liu
The sum A+B of two complex numbers, parallelogram rule.
Activity
Xiaojun Liu