・Mathematical model of plant shoot gravitropism (Shoot vertex model)
https://satorutsugawa.github.io/linevertex.html

・Mathematical model of plant root gravitropism (Root vertex model)
https://satorutsugawa.github.io/Root-vertex-model/rootvertex.html

・Mathematical model of tree shape (Tree model: L-system)
https://SatoruTsugawa.github.io/Tree-model/Tree-model.html