This is the software recommended in junior high school math textbooks, which is the geometric sketchpad. It has been used, and the sensory function needs to be explored.

Depends on what you use. This is more suitable for middle school students. If you want to write a paper more professionally, you'd better use MATLAB or something.

Below is the download address found on Baidu. Please try it.

/soft/uploadsoft/200606/% d0 % C2 % BF % CE % B3 % CC % D7 % CA % c 1% CF % a 1% AA % a 1% AAZ+Z % B3 % AC % BC % B6。

/down1/QL/20040522/QL14.rar is still this one.