https://s0.wp.com/latex.php?latex=%5Cbegin%7Bmatrix%7D0+%26+%5Cto+%26+%5Cwidetilde%7BC%7D%5E0%28G%2CA%29+%26+%5Cxrightarrow%7B%5Cpartial%5E0%7D+%26+%5Cwidetilde%7BC%7D%5E1%28G%2CA%29+%26+%5Cxrightarrow%7B%5Cpartial%5E1%7D+%26+%5Cwidetilde%7BC%7D%5E2%28G%2CA%29+%26+%5Cto+%26+%5Ccdots%5C%5C+%26+%26+%5Cdownarrow+%5E%7Bf%5E0%7D+%26+%26+%5Cdownarrow+%5E%7Bf%5E1%7D+%26+%26+%5Cdownarrow+%5E%7Bf%5E2%7D+%26+%26%5C%5C+0+%26+%5Cto+%26+%5Cwidetilde%7BC%7D%5E0%28G%27%2CA%27%29+%26+%5Cxrightarrow%7B%5Cpartial%5E0%7D+%26+%5Cwidetilde%7BC%7D%5E1%28G%27%2CA%27%29+%26+%5Cxrightarrow%7B%5Cpartial%5E1%7D+%26+%5Cwidetilde%7BC%7D%5E2%28G%27%2CA%27%29+%26+%5Cto+%26+%5Ccdots%5Cend%7Bmatrix%7D&bg=ffffff&fg=333333&s=0&c=20201002