一些开源工具记录及资料scheme

http://maxima.sourceforge.net/download.html

https://themaximalist.org/

http://freemat.sourceforge.net/#download

 

 

 

How to Design Programs, Second Edition

https://htdp.org/2019-02-24/index.html

The Revised⁶ Report on the Algorithmic Language Scheme

http://www.r6rs.org