用免费的绘图应用软件绘制函数，研究方程，图示数据
Easily graph functions, solve equations, find special points of functions,save and share your results.Millions of people around the world use GeoGebra to learn math and science.Join us!
• Plot functions, polar and parametric curves• Solve equations with our powerful math engine
• Experience transformations with sliders• Get special points of functions: roots, min, max, intersections
• Find derivatives and integrals
• Do regression with best-fit lines
•Search for free learning activities directly from our app
•Save and share your results with friends and teachers
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