质点系统的质心

GeoGebra 命令及参数

1. Circle((a_1, a_2), m_1^(0.5)) → c
2. Circle((b_1, b_2), m_2^(0.5)) → d
3. Circle((c_1, c_2), m_3^(0.5)) → e
4. Textfield(b_1) → inputBox1
5. Textfield(b_2) → inputBox2
6. Textfield(a_1) → inputBox3
7. Textfield(a_2) → inputBox4
8. Textfield(c_1) → inputBox5
9. Textfield(c_2) → inputBox6
10. Textfield(m_1) → inputBox7
11. Textfield(m_2) → inputBox8
12. Textfield(m_3) → inputBox9