from IPython.display import IFrame
IFrame("https://en.wikipedia.org/wiki/Bed_load#/media/File:Thalweg_sediment_campbell_creek.jpg",width=800,height=350)
ここに,$P_i$は河床の表層(交換層)の各粒度の含有率
from IPython.display import IFrame
IFrame("fig/case3.html",width=800,height=350)
from IPython.display import IFrame
IFrame("fig/case3d.html",width=800,height=350)